diff --git a/src/views/ECG/ECGForm.vue b/src/views/ECG/ECGForm.vue
index 94413d08..71d48b69 100644
--- a/src/views/ECG/ECGForm.vue
+++ b/src/views/ECG/ECGForm.vue
@@ -517,7 +517,7 @@
     <div>
       <div style="text-align: right">
         <el-button
-          v-if="true"
+          v-if="imagebase64_new && !imagebase64_new.toLowerCase().endsWith('.pdf')"
           type="primary"
           style="width: 90px"
           v-print="{ id: 'printMe_ecg' }"
@@ -529,7 +529,20 @@
       <el-divider style="margin-top: 8px; margin-bottom: 1px" />
     </div>
     <div id="printMe_ecg">
-      <el-image :src="imagebase64_new" style="width: 100%; height: 100%;" />
+      <div v-loading="!imagebase64_new" element-loading-text="加载中...">
+        <iframe
+          v-if="imagebase64_new && imagebase64_new.toLowerCase().endsWith('.pdf')"
+          :src="imagebase64_new"
+          style="width: 100%; height: calc(100vh - 150px); border: none;"
+          frameborder="0"
+        ></iframe>
+        <el-image
+          v-else-if="imagebase64_new"
+          :src="imagebase64_new"
+          style="width: 100%; height: calc(100vh - 150px); object-fit: contain;"
+          fit="contain"
+        />
+      </div>
     </div>
   </el-dialog>
   <div style="position: fixed; top: 0; left: 0; z-index: -1100">
@@ -954,7 +967,15 @@ function print() {
       setTimeout(async () => {
         if (applyFormVO.value.pdfurl) {
           const fileUrl = applyFormVO.value.pdfurl.trim()
-          imagebase64_new.value = fileUrl
+          // 检查是否为PDF文件
+          const isPdf = fileUrl.toLowerCase().endsWith('.pdf')
+          if (isPdf) {
+            // 如果是PDF，使用iframe显示
+            imagebase64_new.value = fileUrl
+          } else {
+            // 如果是图片，使用el-image显示
+            imagebase64_new.value = fileUrl
+          }
         }
       }, 100)
     })