diff --git a/backend/src/main/java/com/imeeting/controller/biz/MeetingController.java b/backend/src/main/java/com/imeeting/controller/biz/MeetingController.java
index da914ef..3286dbd 100644
--- a/backend/src/main/java/com/imeeting/controller/biz/MeetingController.java
+++ b/backend/src/main/java/com/imeeting/controller/biz/MeetingController.java
@@ -301,17 +301,40 @@ public class MeetingController {
             return markdown;
         }
         if (!markdown.startsWith("---")) {
-            return markdown;
+            return unwrapMarkdownFence(markdown);
         }
         int second = markdown.indexOf("\n---", 3);
         if (second < 0) {
-            return markdown;
+            return unwrapMarkdownFence(markdown);
         }
         int contentStart = second + 4;
         if (contentStart < markdown.length() && markdown.charAt(contentStart) == '\n') {
             contentStart++;
         }
-        return markdown.substring(contentStart).trim();
+        return unwrapMarkdownFence(markdown.substring(contentStart).trim());
+    }
+
+    private String unwrapMarkdownFence(String markdown) {
+        if (markdown == null) {
+            return null;
+        }
+        String normalized = markdown.trim();
+        if (!normalized.startsWith("```")) {
+            return normalized;
+        }
+        int firstLineEnd = normalized.indexOf('\n');
+        if (firstLineEnd < 0) {
+            return normalized;
+        }
+        String firstLine = normalized.substring(0, firstLineEnd).trim().toLowerCase();
+        if (!"```".equals(firstLine) && !"```markdown".equals(firstLine) && !"```md".equals(firstLine)) {
+            return normalized;
+        }
+        int lastFence = normalized.lastIndexOf("\n```");
+        if (lastFence <= firstLineEnd) {
+            return normalized.substring(firstLineEnd + 1).trim();
+        }
+        return normalized.substring(firstLineEnd + 1, lastFence).trim();
     }
 
     @GetMapping("/transcripts/{id}")
@@ -423,6 +446,9 @@ public class MeetingController {
             return ApiResponse.error("无权修改此会议信息");
         }
 
+        if (meeting.getSummaryContent() != null) {
+            meetingService.updateSummaryContent(meeting.getId(), meeting.getSummaryContent());
+        }
         return ApiResponse.ok(meetingService.updateById(meeting));
     }
 
diff --git a/backend/src/main/java/com/imeeting/entity/biz/Meeting.java b/backend/src/main/java/com/imeeting/entity/biz/Meeting.java
index 8e05954..32799dc 100644
--- a/backend/src/main/java/com/imeeting/entity/biz/Meeting.java
+++ b/backend/src/main/java/com/imeeting/entity/biz/Meeting.java
@@ -34,4 +34,7 @@ public class Meeting extends BaseEntity {
     private String creatorName;
 
     private Long latestSummaryTaskId;
+
+    @TableField(exist = false)
+    private String summaryContent;
 }
diff --git a/backend/src/main/java/com/imeeting/service/biz/MeetingService.java b/backend/src/main/java/com/imeeting/service/biz/MeetingService.java
index 9041437..166a002 100644
--- a/backend/src/main/java/com/imeeting/service/biz/MeetingService.java
+++ b/backend/src/main/java/com/imeeting/service/biz/MeetingService.java
@@ -21,6 +21,7 @@ public interface MeetingService extends IService<Meeting> {
     void completeRealtimeMeeting(Long meetingId, String audioUrl);
     void updateSpeakerInfo(Long meetingId, String speakerId, String newName, String label);
     void updateMeetingParticipants(Long meetingId, String participants);
+    void updateSummaryContent(Long meetingId, String summaryContent);
     void reSummary(Long meetingId, Long summaryModelId, Long promptId);
     java.util.Map<String, Object> getDashboardStats(Long tenantId, Long userId, boolean isAdmin);
     List<MeetingVO> getRecentMeetings(Long tenantId, Long userId, boolean isAdmin, int limit);
diff --git a/backend/src/main/java/com/imeeting/service/biz/impl/AiTaskServiceImpl.java b/backend/src/main/java/com/imeeting/service/biz/impl/AiTaskServiceImpl.java
index d951f39..c209fe0 100644
--- a/backend/src/main/java/com/imeeting/service/biz/impl/AiTaskServiceImpl.java
+++ b/backend/src/main/java/com/imeeting/service/biz/impl/AiTaskServiceImpl.java
@@ -333,7 +333,7 @@ public class AiTaskServiceImpl extends ServiceImpl<AiTaskMapper, AiTask> impleme
         JsonNode respNode = objectMapper.readTree(response.body());
 
         if (response.statusCode() == 200 && respNode.has("choices")) {
-            String content = respNode.path("choices").path(0).path("message").path("content").asText();
+            String content = sanitizeSummaryContent(respNode.path("choices").path(0).path("message").path("content").asText());
             
             // Save to File
             String timestamp = java.time.format.DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss").format(LocalDateTime.now());
@@ -387,6 +387,33 @@ public class AiTaskServiceImpl extends ServiceImpl<AiTaskMapper, AiTask> impleme
         return httpClient.send(HttpRequest.newBuilder().uri(URI.create(url)).GET().build(), HttpResponse.BodyHandlers.ofString()).body();
     }
 
+    private String sanitizeSummaryContent(String content) {
+        if (content == null || content.isBlank()) {
+            return content;
+        }
+        String normalized = content.trim();
+        int thinkEndIndex = normalized.lastIndexOf("</think>");
+        if (thinkEndIndex >= 0) {
+            normalized = normalized.substring(thinkEndIndex + "</think>".length()).trim();
+        }
+        if (!normalized.startsWith("```")) {
+            return normalized;
+        }
+        int firstLineEnd = normalized.indexOf('\n');
+        if (firstLineEnd < 0) {
+            return normalized;
+        }
+        String firstLine = normalized.substring(0, firstLineEnd).trim().toLowerCase();
+        if (!"```".equals(firstLine) && !"```markdown".equals(firstLine) && !"```md".equals(firstLine)) {
+            return normalized;
+        }
+        int lastFence = normalized.lastIndexOf("\n```");
+        if (lastFence <= firstLineEnd) {
+            return normalized.substring(firstLineEnd + 1).trim();
+        }
+        return normalized.substring(firstLineEnd + 1, lastFence).trim();
+    }
+
     private void updateMeetingStatus(Long id, int status) {
         Meeting m = new Meeting(); m.setId(id); m.setStatus(status); meetingMapper.updateById(m);
     }
diff --git a/backend/src/main/java/com/imeeting/service/biz/impl/MeetingServiceImpl.java b/backend/src/main/java/com/imeeting/service/biz/impl/MeetingServiceImpl.java
index 3ee8598..c202dd6 100644
--- a/backend/src/main/java/com/imeeting/service/biz/impl/MeetingServiceImpl.java
+++ b/backend/src/main/java/com/imeeting/service/biz/impl/MeetingServiceImpl.java
@@ -256,6 +256,35 @@ public class MeetingServiceImpl extends ServiceImpl<MeetingMapper, Meeting> impl
                 .set(Meeting::getParticipants, participants == null ? "" : participants));
     }
 
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void updateSummaryContent(Long meetingId, String summaryContent) {
+        Meeting meeting = this.getById(meetingId);
+        if (meeting == null) {
+            throw new RuntimeException("Meeting not found");
+        }
+
+        AiTask summaryTask = findLatestSummaryTask(meeting);
+        if (summaryTask == null || summaryTask.getResultFilePath() == null || summaryTask.getResultFilePath().isBlank()) {
+            throw new RuntimeException("Summary file not found");
+        }
+
+        String basePath = uploadPath.endsWith("/") ? uploadPath : uploadPath + "/";
+        Path summaryPath = Paths.get(basePath, summaryTask.getResultFilePath().replace("\\", "/"));
+        try {
+            Path parent = summaryPath.getParent();
+            if (parent != null) {
+                Files.createDirectories(parent);
+            }
+
+            String existingContent = Files.exists(summaryPath) ? Files.readString(summaryPath, StandardCharsets.UTF_8) : "";
+            String frontMatter = extractFrontMatter(existingContent, meeting, summaryTask);
+            Files.writeString(summaryPath, frontMatter + normalizeSummaryMarkdown(summaryContent), StandardCharsets.UTF_8);
+        } catch (Exception e) {
+            throw new RuntimeException("Update summary file failed", e);
+        }
+    }
+
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void reSummary(Long meetingId, Long summaryModelId, Long promptId) {
@@ -435,19 +464,7 @@ public class MeetingServiceImpl extends ServiceImpl<MeetingMapper, Meeting> impl
 
     private String loadSummaryContent(Meeting meeting) {
         try {
-            AiTask summaryTask = null;
-            if (meeting.getLatestSummaryTaskId() != null) {
-                summaryTask = aiTaskMapper.selectById(meeting.getLatestSummaryTaskId());
-            }
-            if (summaryTask == null || summaryTask.getResultFilePath() == null || summaryTask.getResultFilePath().isBlank()) {
-                summaryTask = aiTaskMapper.selectOne(new LambdaQueryWrapper<AiTask>()
-                        .eq(AiTask::getMeetingId, meeting.getId())
-                        .eq(AiTask::getTaskType, "SUMMARY")
-                        .eq(AiTask::getStatus, 2)
-                        .isNotNull(AiTask::getResultFilePath)
-                        .orderByDesc(AiTask::getId)
-                        .last("LIMIT 1"));
-            }
+            AiTask summaryTask = findLatestSummaryTask(meeting);
             if (summaryTask == null || summaryTask.getResultFilePath() == null || summaryTask.getResultFilePath().isBlank()) {
                 return null;
             }
@@ -466,6 +483,64 @@ public class MeetingServiceImpl extends ServiceImpl<MeetingMapper, Meeting> impl
         }
     }
 
+    private AiTask findLatestSummaryTask(Meeting meeting) {
+        AiTask summaryTask = null;
+        if (meeting.getLatestSummaryTaskId() != null) {
+            summaryTask = aiTaskMapper.selectById(meeting.getLatestSummaryTaskId());
+        }
+        if (summaryTask == null || summaryTask.getResultFilePath() == null || summaryTask.getResultFilePath().isBlank()) {
+            summaryTask = aiTaskMapper.selectOne(new LambdaQueryWrapper<AiTask>()
+                    .eq(AiTask::getMeetingId, meeting.getId())
+                    .eq(AiTask::getTaskType, "SUMMARY")
+                    .eq(AiTask::getStatus, 2)
+                    .isNotNull(AiTask::getResultFilePath)
+                    .orderByDesc(AiTask::getId)
+                    .last("LIMIT 1"));
+        }
+        return summaryTask;
+    }
+
+    private String extractFrontMatter(String markdown, Meeting meeting, AiTask summaryTask) {
+        if (markdown != null && markdown.startsWith("---")) {
+            int second = markdown.indexOf("\n---", 3);
+            if (second >= 0) {
+                int end = second + 4;
+                if (end < markdown.length() && markdown.charAt(end) == '\n') {
+                    end++;
+                }
+                return markdown.substring(0, end);
+            }
+        }
+        return "---\n" +
+                "updatedAt: " + LocalDateTime.now() + "\n" +
+                "meetingId: " + meeting.getId() + "\n" +
+                "summaryTaskId: " + summaryTask.getId() + "\n" +
+                "---\n\n";
+    }
+
+    private String normalizeSummaryMarkdown(String markdown) {
+        if (markdown == null) {
+            return "";
+        }
+        String normalized = markdown.trim();
+        if (!normalized.startsWith("```")) {
+            return normalized;
+        }
+        int firstLineEnd = normalized.indexOf('\n');
+        if (firstLineEnd < 0) {
+            return normalized;
+        }
+        String firstLine = normalized.substring(0, firstLineEnd).trim().toLowerCase();
+        if (!"```".equals(firstLine) && !"```markdown".equals(firstLine) && !"```md".equals(firstLine)) {
+            return normalized;
+        }
+        int lastFence = normalized.lastIndexOf("\n```");
+        if (lastFence <= firstLineEnd) {
+            return normalized.substring(firstLineEnd + 1).trim();
+        }
+        return normalized.substring(firstLineEnd + 1, lastFence).trim();
+    }
+
     private Integer resolveMeetingDuration(Long meetingId) {
         MeetingTranscript latestTranscript = transcriptMapper.selectOne(new LambdaQueryWrapper<MeetingTranscript>()
                 .eq(MeetingTranscript::getMeetingId, meetingId)
@@ -492,16 +567,16 @@ public class MeetingServiceImpl extends ServiceImpl<MeetingMapper, Meeting> impl
             return markdown;
         }
         if (!markdown.startsWith("---")) {
-            return markdown;
+            return normalizeSummaryMarkdown(markdown);
         }
         int second = markdown.indexOf("\n---", 3);
         if (second < 0) {
-            return markdown;
+            return normalizeSummaryMarkdown(markdown);
         }
         int contentStart = second + 4;
         if (contentStart < markdown.length() && markdown.charAt(contentStart) == '\n') {
             contentStart++;
         }
-        return markdown.substring(contentStart).trim();
+        return normalizeSummaryMarkdown(markdown.substring(contentStart).trim());
     }
 }
diff --git a/backend/src/main/resources/application.yml b/backend/src/main/resources/application.yml
index f623705..e477a08 100644
--- a/backend/src/main/resources/application.yml
+++ b/backend/src/main/resources/application.yml
@@ -3,12 +3,12 @@
 
 spring:
   datasource:
-    url: jdbc:postgresql://192.168.1.55:5432/imeeting_db
+    url: jdbc:postgresql://10.100.51.199:5432/imeeting_db
     username: postgres
     password: postgres
   data:
     redis:
-      host: 192.168.1.55
+      host: 10.100.51.199
       port: 6379
       password: unis@123
       database: 15