diff --git a/src/components/model/CreoModelViewer.vue b/src/components/model/CreoModelViewer.vue
index c653f66..82b1ef2 100644
--- a/src/components/model/CreoModelViewer.vue
+++ b/src/components/model/CreoModelViewer.vue
@@ -23,7 +23,7 @@
         </div>
         <div class="meta-item" v-if="modelData.data?.basicStats?.fileSize">
           <i class="fas fa-hdd"></i>
-          <span>文件大小: {{ modelData.data.basicStats.fileSize }}</span>
+          <span>文件大小: {{ formattedFileSize }}</span>
         </div>
       </div>
     </div>
@@ -38,7 +38,7 @@
           <div class="stats-grid">
             <div class="stat-item">
               <label>零件数量:</label>
-              <span>{{ Math.max(0, (modelData.data?.partCount || 0) - 1) }}个</span>
+              <span>{{ modelData.data?.partCount || 0 }}个</span>
             </div>
             <div class="stat-item">
               <label>装配层级:</label>
@@ -104,6 +104,7 @@
 <script setup>
 // 移除未使用的import
 import { ElNotification } from 'element-plus'
+import { computed } from 'vue'
 
 const props = defineProps({
   modelData: {
@@ -112,6 +113,21 @@ const props = defineProps({
   }
 })
 
+// 处理文件大小显示（将文件数量减1）
+const formattedFileSize = computed(() => {
+  const fileSize = props.modelData.data?.basicStats?.fileSize
+  if (!fileSize) return ''
+
+  // 匹配 "xxx (from N files)" 格式
+  const match = fileSize.match(/^(.*?)\s*\(from\s+(\d+)\s+files?\)(.*)$/)
+  if (match) {
+    const [, sizeStr, fileCount, rest] = match
+    const adjustedCount = Math.max(0, parseInt(fileCount) - 1)
+    const fileText = adjustedCount === 1 ? 'file' : 'files'
+    return `${sizeStr} (from ${adjustedCount} ${fileText})${rest || ''}`
+  }
+  return fileSize
+})
 
 // 格式化日期
 const formatDate = (dateValue) => {