diff --git a/.github/workflows/jira-sync.yml b/.github/workflows/jira-sync.yml
index 9164dac..4d7ad5c 100644
--- a/.github/workflows/jira-sync.yml
+++ b/.github/workflows/jira-sync.yml
@@ -24,6 +24,7 @@ jobs:
         echo "EOF" >> $GITHUB_OUTPUT
 
     - name: Create Issue 
+      id: create
       uses: atlassian/gajira-create@v3
       with:
         project: ISSUE
@@ -33,6 +34,26 @@ jobs:
           h2. 이슈 상세 정보
           * GitHub Issue URL: ${{ github.event.issue.html_url }}
           * 생성자: ${{ github.event.issue.user.login }}
-          * 라벨: ${{ join(github.event.issue.labels.*.name, ', ') }}
 
-          ${{ steps.process_body.outputs.processed_body }}
\ No newline at end of file
+          ${{ steps.process_body.outputs.processed_body }}
+
+    - name: Debug Jira Issue Key
+      run: |
+        echo "Created Jira issue key: ${{ steps.create.outputs.issue }}"
+
+    - name: Update GitHub Issue Body
+      if: steps.create.outputs.issue != ''
+      uses: actions/github-script@v6
+      env:
+        JIRA_KEY: ${{ steps.create.outputs.issue }}
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        script: |
+          console.log('Updating issue with Jira key:', process.env.JIRA_KEY);
+          const { owner, repo } = context.repo;
+          await github.rest.issues.update({
+            owner,
+            repo,
+            issue_number: context.issue.number,
+            body: `🔑 Jira Issue: ${process.env.JIRA_KEY}\n\n${context.payload.issue.body || ''}`
+          });
\ No newline at end of file
diff --git a/.github/workflows/sync-jira-on-close.yml b/.github/workflows/sync-jira-on-close.yml
index 4a6a5af..247fc45 100644
--- a/.github/workflows/sync-jira-on-close.yml
+++ b/.github/workflows/sync-jira-on-close.yml
@@ -16,35 +16,33 @@ jobs:
         JIRA_API_TOKEN: ${{ secrets.JIRA_API_TOKEN }}
         JIRA_USER_EMAIL: ${{ secrets.JIRA_USER_EMAIL }}
 
-    - name: Debug Info Before Search
-      run: |
-        echo "GitHub Issue Title: ${{ github.event.issue.title }}"
-        echo "GitHub Issue URL: ${{ github.event.issue.html_url }}"
-
-    - name: Search for Jira Issue
-      id: search
-      uses: atlassian/gajira-find-issue-key@v3
+    - name: Extract Jira Key
+      id: extract
+      uses: actions/github-script@v6
       with:
-        string: ${{ github.event.issue.title }}
-
-    - name: Debug Info After Search
-      run: |
-        echo "Jira Search Result: ${{ steps.search.outputs.issue }}"
+        script: |
+          const body = context.payload.issue.body;
+          const match = body.match(/🔑 Jira Issue: ([A-Z]+-[0-9]+)/);
+          if (match) {
+            return match[1];
+          }
+          return '';
+        result-encoding: string
 
     - name: Transition Jira Issue
-      if: steps.search.outputs.issue != ''
+      if: steps.extract.outputs.result != ''
       uses: atlassian/gajira-transition@v3
       with:
-        issue: ${{ steps.search.outputs.issue }}
+        issue: ${{ steps.extract.outputs.result }}
         transition: "Done"
 
     - name: Comment on Jira Issue
-      if: steps.search.outputs.issue != ''
+      if: steps.extract.outputs.result != ''
       uses: atlassian/gajira-comment@v3
       with:
-        issue: ${{ steps.search.outputs.issue }}
+        issue: ${{ steps.extract.outputs.result }}
         comment: "Issue Closed: ${{ github.event.issue.html_url }}"
 
     - name: Log if no Jira issue found
-      if: steps.search.outputs.issue == ''
-      run: echo "No matching Jira issue found for GitHub issue ${{ github.event.issue.number }}"
\ No newline at end of file
+      if: steps.extract.outputs.result == ''
+      run: echo "No Jira issue key found in GitHub issue body"
\ No newline at end of file