diff --git a/npm-install/action.yml b/npm-install/action.yml
index ab416b7..6d43a69 100644
--- a/npm-install/action.yml
+++ b/npm-install/action.yml
@@ -52,8 +52,8 @@ outputs:
 runs:
   using: 'composite'
   steps:
-    - name: 生成缓存key
-      id: cache-key
+    - name: 检测锁文件
+      id: detect-lockfile
       shell: bash
       run: |
         LOCKFILE="${{ inputs.lockfile-name }}"
@@ -73,10 +73,29 @@ runs:
           fi
         fi
         
-        CACHE_KEY="${{ runner.os }}-${{ inputs.cache-prefix }}-$(echo '${{ hashFiles('${LOCKFILE}') }}' | head -c 12)"
-        echo "key=${CACHE_KEY}" >> $GITHUB_OUTPUT
         echo "lockfile=${LOCKFILE}" >> $GITHUB_OUTPUT
         echo "使用锁文件: ${LOCKFILE}"
+
+    - name: 生成缓存key
+      id: cache-key
+      shell: bash
+      env:
+        LOCKFILE_HASH: ${{ hashFiles(steps.detect-lockfile.outputs.lockfile) }}
+      run: |
+        LOCKFILE="${{ steps.detect-lockfile.outputs.lockfile }}"
+        
+        # 截取hash的前12位
+        if [[ -n "${LOCKFILE_HASH}" && "${LOCKFILE_HASH}" != "" ]]; then
+          LOCKFILE_HASH_SHORT=$(echo "${LOCKFILE_HASH}" | head -c 12)
+        else
+          echo "⚠️ 警告: 无法计算锁文件hash，使用默认值"
+          LOCKFILE_HASH_SHORT="no-lockfile"
+        fi
+        
+        CACHE_KEY="${{ runner.os }}-${{ inputs.cache-prefix }}-${LOCKFILE_HASH_SHORT}"
+        echo "key=${CACHE_KEY}" >> $GITHUB_OUTPUT
+        echo "锁文件: ${LOCKFILE}"
+        echo "文件hash: ${LOCKFILE_HASH}"
         echo "缓存key: ${CACHE_KEY}"
 
     - name: 拉取缓存依赖