diff --git a/frontend/src/components/Step3Simulation.vue b/frontend/src/components/Step3Simulation.vue
index 32e136e2..5b0f968c 100644
--- a/frontend/src/components/Step3Simulation.vue
+++ b/frontend/src/components/Step3Simulation.vue
@@ -22,7 +22,7 @@
               <span class="stat-value mono">{{ runStatus.twitter_current_round || 0 }}<span class="stat-total">/{{ runStatus.total_rounds || maxRounds || '-' }}</span></span>
             </span>
             <span class="stat">
-              <span class="stat-label">Elapsed Time</span>
+              <span class="stat-label">TIME</span>
               <span class="stat-value mono">{{ twitterElapsedTime }}</span>
             </span>
             <span class="stat">
@@ -63,7 +63,7 @@
               <span class="stat-value mono">{{ runStatus.reddit_current_round || 0 }}<span class="stat-total">/{{ runStatus.total_rounds || maxRounds || '-' }}</span></span>
             </span>
             <span class="stat">
-              <span class="stat-label">Elapsed Time</span>
+              <span class="stat-label">TIME</span>
               <span class="stat-value mono">{{ redditElapsedTime }}</span>
             </span>
             <span class="stat">
@@ -382,16 +382,16 @@ const resetAllState = () => {
 // 启动模拟
 const doStartSimulation = async () => {
   if (!props.simulationId) {
-    addLog('错误：缺少 simulationId')
+    addLog(t('log.errorMissingSimId'))
     return
   }
-  
+
   // 先重置所有状态，确保不会受到上一次模拟的影响
   resetAllState()
   
   isStarting.value = true
   startError.value = null
-  addLog('正在启动双平台并行模拟...')
+  addLog(t('log.startingDualSim'))
   emit('update-status', 'processing')
   
   try {
@@ -404,18 +404,18 @@ const doStartSimulation = async () => {
     
     if (props.maxRounds) {
       params.max_rounds = props.maxRounds
-      addLog(`设置最大模拟轮数: ${props.maxRounds}`)
+      addLog(t('log.setMaxRounds', { rounds: props.maxRounds }))
     }
     
-    addLog('已开启动态图谱更新模式')
+    addLog(t('log.graphMemoryUpdateEnabled'))
     
     const res = await startSimulation(params)
     
     if (res.success && res.data) {
       if (res.data.force_restarted) {
-        addLog('✓ 已清理旧的模拟日志，重新开始模拟')
+        addLog(t('log.oldSimCleared'))
       }
-      addLog('✓ 模拟引擎启动成功')
+      addLog(t('log.engineStarted'))
       addLog(`  ├─ PID: ${res.data.process_pid || '-'}`)
       
       phase.value = 1
@@ -425,12 +425,12 @@ const doStartSimulation = async () => {
       startDetailPolling()
     } else {
       startError.value = res.error || '启动失败'
-      addLog(`✗ 启动失败: ${res.error || '未知错误'}`)
+      addLog(t('log.startFailed', { error: res.error || t('common.unknownError') }))
       emit('update-status', 'error')
     }
   } catch (err) {
     startError.value = err.message
-    addLog(`✗ 启动异常: ${err.message}`)
+    addLog(t('log.startException', { error: err.message }))
     emit('update-status', 'error')
   } finally {
     isStarting.value = false
@@ -442,21 +442,21 @@ const handleStopSimulation = async () => {
   if (!props.simulationId) return
   
   isStopping.value = true
-  addLog('正在停止模拟...')
+  addLog(t('log.stoppingSim'))
   
   try {
     const res = await stopSimulation({ simulation_id: props.simulationId })
     
     if (res.success) {
-      addLog('✓ 模拟已停止')
+      addLog(t('log.simStoppedSuccess'))
       phase.value = 2
       stopPolling()
       emit('update-status', 'completed')
     } else {
-      addLog(`停止失败: ${res.error || '未知错误'}`)
+      addLog(t('log.stopFailed', { error: res.error || t('common.unknownError') }))
     }
   } catch (err) {
-    addLog(`停止异常: ${err.message}`)
+    addLog(t('log.stopException', { error: err.message }))
   } finally {
     isStopping.value = false
   }
@@ -520,9 +520,9 @@ const fetchRunStatus = async () => {
       
       if (isCompleted || platformsCompleted) {
         if (platformsCompleted && !isCompleted) {
-          addLog('✓ 检测到所有平台模拟已结束')
+          addLog(t('log.allPlatformsCompleted'))
         }
-        addLog('✓ 模拟已完成')
+        addLog(t('log.simCompleted'))
         phase.value = 2
         stopPolling()
         emit('update-status', 'completed')
@@ -643,17 +643,17 @@ const formatActionTime = (timestamp) => {
 
 const handleNextStep = async () => {
   if (!props.simulationId) {
-    addLog('错误：缺少 simulationId')
+    addLog(t('log.errorMissingSimId'))
     return
   }
-  
+
   if (isGeneratingReport.value) {
-    addLog('报告生成请求已发送，请稍候...')
+    addLog(t('log.reportRequestSent'))
     return
   }
   
   isGeneratingReport.value = true
-  addLog('正在启动报告生成...')
+  addLog(t('log.startingReportGen'))
   
   try {
     const res = await generateReport({
@@ -663,16 +663,16 @@ const handleNextStep = async () => {
     
     if (res.success && res.data) {
       const reportId = res.data.report_id
-      addLog(`✓ 报告生成任务已启动: ${reportId}`)
+      addLog(t('log.reportGenTaskStarted', { reportId }))
       
       // 跳转到报告页面
       router.push({ name: 'Report', params: { reportId } })
     } else {
-      addLog(`✗ 启动报告生成失败: ${res.error || '未知错误'}`)
+      addLog(t('log.reportGenFailed', { error: res.error || t('common.unknownError') }))
       isGeneratingReport.value = false
     }
   } catch (err) {
-    addLog(`✗ 启动报告生成异常: ${err.message}`)
+    addLog(t('log.reportGenException', { error: err.message }))
     isGeneratingReport.value = false
   }
 }
@@ -688,7 +688,7 @@ watch(() => props.systemLogs?.length, () => {
 })
 
 onMounted(() => {
-  addLog('Step3 模拟运行初始化')
+  addLog(t('log.step3Init'))
   if (props.simulationId) {
     doStartSimulation()
   }
diff --git a/frontend/src/components/Step5Interaction.vue b/frontend/src/components/Step5Interaction.vue
index cd721c65..075ba41c 100644
--- a/frontend/src/components/Step5Interaction.vue
+++ b/frontend/src/components/Step5Interaction.vue
@@ -538,7 +538,7 @@ const selectAgent = (agent, idx) => {
   
   // 恢复该 Agent 的对话记录
   chatHistory.value = chatHistoryCache.value[`agent_${idx}`] || []
-  addLog(`选择对话对象: ${agent.username}`)
+  addLog(t('log.selectChatTarget', { name: agent.username }))
 }
 
 const formatTime = (timestamp) => {
@@ -665,7 +665,7 @@ const sendMessage = async () => {
       await sendToAgent(message)
     }
   } catch (err) {
-    addLog(`发送失败: ${err.message}`)
+    addLog(t('log.sendFailed', { error: err.message }))
     chatHistory.value.push({
       role: 'assistant',
       content: t('step5.errorOccurred', { error: err.message }),
@@ -680,7 +680,7 @@ const sendMessage = async () => {
 }
 
 const sendToReportAgent = async (message) => {
-  addLog(`向 Report Agent 发送: ${message.substring(0, 50)}...`)
+  addLog(t('log.sendToReportAgent', { message: message.substring(0, 50) }))
   
   // Build chat history for API
   const historyForApi = chatHistory.value
@@ -703,7 +703,7 @@ const sendToReportAgent = async (message) => {
       content: res.data.response || res.data.answer || t('step5.noResponse'),
       timestamp: new Date().toISOString()
     })
-    addLog('Report Agent 已回复')
+    addLog(t('log.reportAgentReplied'))
   } else {
     throw new Error(res.error || t('step5.requestFailed'))
   }
@@ -714,7 +714,7 @@ const sendToAgent = async (message) => {
     throw new Error(t('step5.selectAgentFirst'))
   }
   
-  addLog(`向 ${selectedAgent.value.username} 发送: ${message.substring(0, 50)}...`)
+  addLog(t('log.sendToAgent', { name: selectedAgent.value.username, message: message.substring(0, 50) }))
   
   // Build prompt with chat history
   let prompt = message
@@ -764,7 +764,7 @@ const sendToAgent = async (message) => {
         content: responseContent,
         timestamp: new Date().toISOString()
       })
-      addLog(`${selectedAgent.value.username} 已回复`)
+      addLog(t('log.agentReplied', { name: selectedAgent.value.username }))
     } else {
       throw new Error(t('step5.noResponse'))
     }
@@ -806,7 +806,7 @@ const submitSurvey = async () => {
   if (selectedAgents.value.size === 0 || !surveyQuestion.value.trim()) return
   
   isSurveying.value = true
-  addLog(`发送问卷给 ${selectedAgents.value.size} 个对象...`)
+  addLog(t('log.sendSurvey', { count: selectedAgents.value.size }))
   
   try {
     const interviews = Array.from(selectedAgents.value).map(idx => ({
@@ -860,12 +860,12 @@ const submitSurvey = async () => {
       }
       
       surveyResults.value = surveyResultsList
-      addLog(`收到 ${surveyResults.value.length} 条回复`)
+      addLog(t('log.receivedReplies', { count: surveyResults.value.length }))
     } else {
       throw new Error(res.error || t('step5.requestFailed'))
     }
   } catch (err) {
-    addLog(`问卷发送失败: ${err.message}`)
+    addLog(t('log.surveySendFailed', { error: err.message }))
   } finally {
     isSurveying.value = false
   }
@@ -876,7 +876,7 @@ const loadReportData = async () => {
   if (!props.reportId) return
   
   try {
-    addLog(`加载报告数据: ${props.reportId}`)
+    addLog(t('log.loadReportData', { id: props.reportId }))
     
     // Get report info
     const reportRes = await getReport(props.reportId)
@@ -885,7 +885,7 @@ const loadReportData = async () => {
       await loadAgentLogs()
     }
   } catch (err) {
-    addLog(`加载报告失败: ${err.message}`)
+    addLog(t('log.loadReportFailed', { error: err.message }))
   }
 }
 
@@ -907,10 +907,10 @@ const loadAgentLogs = async () => {
         }
       })
       
-      addLog('报告数据加载完成')
+      addLog(t('log.reportDataLoaded'))
     }
   } catch (err) {
-    addLog(`加载报告日志失败: ${err.message}`)
+    addLog(t('log.loadReportLogFailed', { error: err.message }))
   }
 }
 
@@ -921,10 +921,10 @@ const loadProfiles = async () => {
     const res = await getSimulationProfilesRealtime(props.simulationId, 'reddit')
     if (res.success && res.data) {
       profiles.value = res.data.profiles || []
-      addLog(`加载了 ${profiles.value.length} 个模拟个体`)
+      addLog(t('log.loadedProfiles', { count: profiles.value.length }))
     }
   } catch (err) {
-    addLog(`加载模拟个体失败: ${err.message}`)
+    addLog(t('log.loadProfilesFailed', { error: err.message }))
   }
 }
 
@@ -938,7 +938,7 @@ const handleClickOutside = (e) => {
 
 // Lifecycle
 onMounted(() => {
-  addLog('Step5 深度互动初始化')
+  addLog(t('log.step5Init'))
   loadReportData()
   loadProfiles()
   document.addEventListener('click', handleClickOutside)
diff --git a/frontend/src/views/InteractionView.vue b/frontend/src/views/InteractionView.vue
index a2de0f4e..7e555b26 100644
--- a/frontend/src/views/InteractionView.vue
+++ b/frontend/src/views/InteractionView.vue
@@ -66,6 +66,7 @@
 <script setup>
 import { ref, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
+import { useI18n } from 'vue-i18n'
 import GraphPanel from '../components/GraphPanel.vue'
 import Step5Interaction from '../components/Step5Interaction.vue'
 import { getProject, getGraphData } from '../api/graph'
@@ -75,6 +76,7 @@ import LanguageSwitcher from '../components/LanguageSwitcher.vue'
 
 const route = useRoute()
 const router = useRouter()
+const { t } = useI18n()
 
 // Props
 const props = defineProps({
@@ -143,27 +145,27 @@ const toggleMaximize = (target) => {
 // --- Data Logic ---
 const loadReportData = async () => {
   try {
-    addLog(`加载报告数据: ${currentReportId.value}`)
-    
+    addLog(t('log.loadReportData', { id: currentReportId.value }))
+
     // 获取 report 信息以获取 simulation_id
     const reportRes = await getReport(currentReportId.value)
     if (reportRes.success && reportRes.data) {
       const reportData = reportRes.data
       simulationId.value = reportData.simulation_id
-      
+
       if (simulationId.value) {
         // 获取 simulation 信息
         const simRes = await getSimulation(simulationId.value)
         if (simRes.success && simRes.data) {
           const simData = simRes.data
-          
+
           // 获取 project 信息
           if (simData.project_id) {
             const projRes = await getProject(simData.project_id)
             if (projRes.success && projRes.data) {
               projectData.value = projRes.data
-              addLog(`项目加载成功: ${projRes.data.project_id}`)
-              
+              addLog(t('log.projectLoadSuccess', { id: projRes.data.project_id }))
+
               // 获取 graph 数据
               if (projRes.data.graph_id) {
                 await loadGraph(projRes.data.graph_id)
@@ -173,10 +175,10 @@ const loadReportData = async () => {
         }
       }
     } else {
-      addLog(`获取报告信息失败: ${reportRes.error || '未知错误'}`)
+      addLog(t('log.getReportInfoFailed', { error: reportRes.error || t('common.unknownError') }))
     }
   } catch (err) {
-    addLog(`加载异常: ${err.message}`)
+    addLog(t('log.loadException', { error: err.message }))
   }
 }
 
@@ -187,10 +189,10 @@ const loadGraph = async (graphId) => {
     const res = await getGraphData(graphId)
     if (res.success) {
       graphData.value = res.data
-      addLog('图谱数据加载成功')
+      addLog(t('log.graphDataLoadSuccess'))
     }
   } catch (err) {
-    addLog(`图谱加载失败: ${err.message}`)
+    addLog(t('log.graphLoadFailed', { error: err.message }))
   } finally {
     graphLoading.value = false
   }
@@ -211,7 +213,7 @@ watch(() => route.params.reportId, (newId) => {
 }, { immediate: true })
 
 onMounted(() => {
-  addLog('InteractionView 初始化')
+  addLog(t('log.interactionViewInit'))
   loadReportData()
 })
 </script>
diff --git a/frontend/src/views/MainView.vue b/frontend/src/views/MainView.vue
index 41a0a374..513c70d8 100644
--- a/frontend/src/views/MainView.vue
+++ b/frontend/src/views/MainView.vue
@@ -164,11 +164,11 @@ const toggleMaximize = (target) => {
 const handleNextStep = (params = {}) => {
   if (currentStep.value < 5) {
     currentStep.value++
-    addLog(`进入 Step ${currentStep.value}: ${stepNames.value[currentStep.value - 1]}`)
+    addLog(t('log.enterStep', { step: currentStep.value, name: stepNames.value[currentStep.value - 1] }))
     
     // 如果是从 Step 2 进入 Step 3，记录模拟轮数配置
     if (currentStep.value === 3 && params.maxRounds) {
-      addLog(`自定义模拟轮数: ${params.maxRounds} 轮`)
+      addLog(t('log.customSimRounds', { rounds: params.maxRounds }))
     }
   }
 }
@@ -176,7 +176,7 @@ const handleNextStep = (params = {}) => {
 const handleGoBack = () => {
   if (currentStep.value > 1) {
     currentStep.value--
-    addLog(`返回 Step ${currentStep.value}: ${stepNames.value[currentStep.value - 1]}`)
+    addLog(t('log.returnToStep', { step: currentStep.value, name: stepNames.value[currentStep.value - 1] }))
   }
 }
 
diff --git a/frontend/src/views/ReportView.vue b/frontend/src/views/ReportView.vue
index e8dbf5a6..ac054e47 100644
--- a/frontend/src/views/ReportView.vue
+++ b/frontend/src/views/ReportView.vue
@@ -66,6 +66,7 @@
 <script setup>
 import { ref, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
+import { useI18n } from 'vue-i18n'
 import GraphPanel from '../components/GraphPanel.vue'
 import Step4Report from '../components/Step4Report.vue'
 import { getProject, getGraphData } from '../api/graph'
@@ -75,6 +76,7 @@ import LanguageSwitcher from '../components/LanguageSwitcher.vue'
 
 const route = useRoute()
 const router = useRouter()
+const { t } = useI18n()
 
 // Props
 const props = defineProps({
@@ -142,27 +144,27 @@ const toggleMaximize = (target) => {
 // --- Data Logic ---
 const loadReportData = async () => {
   try {
-    addLog(`加载报告数据: ${currentReportId.value}`)
-    
+    addLog(t('log.loadReportData', { id: currentReportId.value }))
+
     // 获取 report 信息以获取 simulation_id
     const reportRes = await getReport(currentReportId.value)
     if (reportRes.success && reportRes.data) {
       const reportData = reportRes.data
       simulationId.value = reportData.simulation_id
-      
+
       if (simulationId.value) {
         // 获取 simulation 信息
         const simRes = await getSimulation(simulationId.value)
         if (simRes.success && simRes.data) {
           const simData = simRes.data
-          
+
           // 获取 project 信息
           if (simData.project_id) {
             const projRes = await getProject(simData.project_id)
             if (projRes.success && projRes.data) {
               projectData.value = projRes.data
-              addLog(`项目加载成功: ${projRes.data.project_id}`)
-              
+              addLog(t('log.projectLoadSuccess', { id: projRes.data.project_id }))
+
               // 获取 graph 数据
               if (projRes.data.graph_id) {
                 await loadGraph(projRes.data.graph_id)
@@ -172,10 +174,10 @@ const loadReportData = async () => {
         }
       }
     } else {
-      addLog(`获取报告信息失败: ${reportRes.error || '未知错误'}`)
+      addLog(t('log.getReportInfoFailed', { error: reportRes.error || t('common.unknownError') }))
     }
   } catch (err) {
-    addLog(`加载异常: ${err.message}`)
+    addLog(t('log.loadException', { error: err.message }))
   }
 }
 
@@ -186,10 +188,10 @@ const loadGraph = async (graphId) => {
     const res = await getGraphData(graphId)
     if (res.success) {
       graphData.value = res.data
-      addLog('图谱数据加载成功')
+      addLog(t('log.graphDataLoadSuccess'))
     }
   } catch (err) {
-    addLog(`图谱加载失败: ${err.message}`)
+    addLog(t('log.graphLoadFailed', { error: err.message }))
   } finally {
     graphLoading.value = false
   }
@@ -210,7 +212,7 @@ watch(() => route.params.reportId, (newId) => {
 }, { immediate: true })
 
 onMounted(() => {
-  addLog('ReportView 初始化')
+  addLog(t('log.reportViewInit'))
   loadReportData()
 })
 </script>