diff --git a/src/__tests__/taskRetryActions.test.ts b/src/__tests__/taskRetryActions.test.ts
index ea172fb..5eee5fb 100644
--- a/src/__tests__/taskRetryActions.test.ts
+++ b/src/__tests__/taskRetryActions.test.ts
@@ -70,7 +70,11 @@ vi.mock('../features/interactive/index.js', () => ({
   loadRunSessionContext: vi.fn(),
   getRunPaths: vi.fn(() => ({ logsDir: '/tmp/logs', reportsDir: '/tmp/reports' })),
   formatRunSessionForPrompt: vi.fn(() => ({
-    runTask: '', runPiece: '', runStatus: '', runMovementLogs: '', runReports: '',
+    runTask: '',
+    runPiece: 'default',
+    runStatus: '',
+    runMovementLogs: '',
+    runReports: '',
   })),
   runRetryMode: (...args: unknown[]) => mockRunRetryMode(...args),
   findPreviousOrderContent: vi.fn(() => null),
@@ -91,6 +95,17 @@ vi.mock('../features/tasks/execute/taskExecution.js', () => ({
   executeAndCompleteTask: (...args: unknown[]) => mockExecuteAndCompleteTask(...args),
 }));
 
+vi.mock('../shared/i18n/index.js', () => ({
+  getLabel: vi.fn((key: string) => {
+    const labels: Record<string, string> = {
+      'retry.workflowPrompt': 'Select workflow:',
+      'retry.usePreviousWorkflow': 'Use previous',
+      'retry.changeWorkflow': 'Change workflow',
+    };
+    return labels[key] ?? key;
+  }),
+}));
+
 import { retryFailedTask } from '../features/tasks/list/taskRetryActions.js';
 import type { TaskListItem } from '../infra/task/types.js';
 import type { PieceConfig } from '../core/models/index.js';
@@ -262,4 +277,54 @@ describe('retryFailedTask', () => {
 
     expect(mockRequeueTask).toHaveBeenCalledWith('my-task', ['failed'], undefined, '既存ノート\n\n追加指示A');
   });
+
+  describe('when previous workflow exists', () => {
+    beforeEach(() => {
+      mockFindRunForTask.mockReturnValue('run-123');
+    });
+
+    it('should show workflow selection prompt when runInfo.piece exists', async () => {
+      const task = makeFailedTask();
+
+      await retryFailedTask(task, '/project');
+
+      expect(mockSelectOptionWithDefault).toHaveBeenCalledWith(
+        'Select workflow:',
+        expect.arrayContaining([
+          expect.objectContaining({ value: 'use_previous' }),
+          expect.objectContaining({ value: 'change' }),
+        ]),
+        'use_previous',
+      );
+    });
+
+    it('should use previous workflow when use_previous is selected', async () => {
+      const task = makeFailedTask();
+      mockSelectOptionWithDefault.mockResolvedValue('use_previous');
+
+      await retryFailedTask(task, '/project');
+
+      expect(mockSelectPiece).not.toHaveBeenCalled();
+      expect(mockLoadPieceByIdentifier).toHaveBeenCalledWith('default', '/project');
+    });
+
+    it('should call selectPiece when change is selected', async () => {
+      const task = makeFailedTask();
+      mockSelectOptionWithDefault.mockResolvedValue('change');
+
+      await retryFailedTask(task, '/project');
+
+      expect(mockSelectPiece).toHaveBeenCalledWith('/project');
+    });
+
+    it('should return false when workflow selection is cancelled', async () => {
+      const task = makeFailedTask();
+      mockSelectOptionWithDefault.mockResolvedValue(null);
+
+      const result = await retryFailedTask(task, '/project');
+
+      expect(result).toBe(false);
+      expect(mockLoadPieceByIdentifier).not.toHaveBeenCalled();
+    });
+  });
 });
diff --git a/src/features/tasks/list/taskRetryActions.ts b/src/features/tasks/list/taskRetryActions.ts
index 88aa354..565faf6 100644
--- a/src/features/tasks/list/taskRetryActions.ts
+++ b/src/features/tasks/list/taskRetryActions.ts
@@ -11,6 +11,7 @@ import { TaskRunner } from '../../../infra/task/index.js';
 import { loadPieceByIdentifier, resolvePieceConfigValue, getPieceDescription } from '../../../infra/config/index.js';
 import { selectPiece } from '../../pieceSelection/index.js';
 import { selectOptionWithDefault } from '../../../shared/prompt/index.js';
+import { getLabel } from '../../../shared/i18n/index.js';
 import { info, header, blankLine, status } from '../../../shared/ui/index.js';
 import { createLogger } from '../../../shared/utils/index.js';
 import type { PieceConfig } from '../../../core/models/index.js';
@@ -128,10 +129,44 @@ export async function retryFailedTask(
 
   displayFailureInfo(task);
 
-  const selectedPiece = await selectPiece(projectDir);
-  if (!selectedPiece) {
-    info('Cancelled');
-    return false;
+  const matchedSlug = findRunForTask(worktreePath, task.content);
+  const runInfo = matchedSlug ? buildRetryRunInfo(worktreePath, matchedSlug) : null;
+
+  let selectedPiece: string;
+  if (runInfo?.piece) {
+    const usePreviousLabel = getLabel('retry.usePreviousWorkflow');
+    const changeWorkflowLabel = getLabel('retry.changeWorkflow');
+    const choice = await selectOptionWithDefault(
+      getLabel('retry.workflowPrompt'),
+      [
+        { label: `${runInfo.piece} - ${usePreviousLabel}`, value: 'use_previous' },
+        { label: changeWorkflowLabel, value: 'change' },
+      ],
+      'use_previous',
+    );
+
+    if (choice === null) {
+      info('Cancelled');
+      return false;
+    }
+
+    if (choice === 'use_previous') {
+      selectedPiece = runInfo.piece;
+    } else {
+      const selected = await selectPiece(projectDir);
+      if (!selected) {
+        info('Cancelled');
+        return false;
+      }
+      selectedPiece = selected;
+    }
+  } else {
+    const selected = await selectPiece(projectDir);
+    if (!selected) {
+      info('Cancelled');
+      return false;
+    }
+    selectedPiece = selected;
   }
 
   const previewCount = resolvePieceConfigValue(projectDir, 'interactivePreviewMovements');
@@ -155,8 +190,6 @@ export async function retryFailedTask(
   };
 
   // Runs data lives in the worktree (written during previous execution)
-  const matchedSlug = findRunForTask(worktreePath, task.content);
-  const runInfo = matchedSlug ? buildRetryRunInfo(worktreePath, matchedSlug) : null;
   const previousOrderContent = findPreviousOrderContent(worktreePath, matchedSlug);
 
   blankLine();
diff --git a/src/shared/i18n/labels_en.yaml b/src/shared/i18n/labels_en.yaml
index 74bb946..07662c6 100644
--- a/src/shared/i18n/labels_en.yaml
+++ b/src/shared/i18n/labels_en.yaml
@@ -96,6 +96,9 @@ instruct:
 retry:
   ui:
     intro: "Retry mode - describe additional instructions. Commands: /go (create instruction & run), /retry (rerun previous order), /cancel (exit)"
+  workflowPrompt: "Select workflow:"
+  usePreviousWorkflow: "Use previous"
+  changeWorkflow: "Change workflow"
 
 run:
   notifyComplete: "Run complete ({total} tasks)"
diff --git a/src/shared/i18n/labels_ja.yaml b/src/shared/i18n/labels_ja.yaml
index 6b27047..51e8c3c 100644
--- a/src/shared/i18n/labels_ja.yaml
+++ b/src/shared/i18n/labels_ja.yaml
@@ -96,6 +96,9 @@ instruct:
 retry:
   ui:
     intro: "リトライモード - 追加指示を入力してください。コマンド: /go（指示書作成・実行）, /retry（前回の指示書で再実行）, /cancel（終了）"
+  workflowPrompt: "ワークフローを選択:"
+  usePreviousWorkflow: "前回のまま使用"
+  changeWorkflow: "ワークフローを変更"
 
 run:
   notifyComplete: "run完了 ({total} tasks)"