diff --git a/src/views/dictionary/attachment/components/SignatureTemplate/attachmentPreview.vue b/src/views/dictionary/attachment/components/SignatureTemplate/attachmentPreview.vue
index 1857675e..3f030790 100644
--- a/src/views/dictionary/attachment/components/SignatureTemplate/attachmentPreview.vue
+++ b/src/views/dictionary/attachment/components/SignatureTemplate/attachmentPreview.vue
@@ -141,7 +141,7 @@ export default {
                 this.loading = false
                 if (res.IsSuccess) {
                     this.list = res.Result.CurrentPageData
-                    this.rowData = this.list[0]
+                    this.rowData = this.list[0] || {}
                 }
             } catch (err) {
                 this.loading = false
diff --git a/src/views/trials/trials-panel/attachments/attachment-management/index.vue b/src/views/trials/trials-panel/attachments/attachment-management/index.vue
index f837f48f..f20878a2 100644
--- a/src/views/trials/trials-panel/attachments/attachment-management/index.vue
+++ b/src/views/trials/trials-panel/attachments/attachment-management/index.vue
@@ -300,6 +300,7 @@ export default {
   },
   methods: {
     openAttachment(row) {
+      if (!row.AttachmentCount) return false
       this.SystemDocumentId = row.Id
       this.perview_visible = true
     },
diff --git a/src/views/trials/trials-panel/attachments/self-attachment/index.vue b/src/views/trials/trials-panel/attachments/self-attachment/index.vue
index 46b40941..63f4cbd9 100644
--- a/src/views/trials/trials-panel/attachments/self-attachment/index.vue
+++ b/src/views/trials/trials-panel/attachments/self-attachment/index.vue
@@ -194,6 +194,7 @@ export default {
   },
   methods: {
     openAttachment(row) {
+      if (!row.AttachmentCount) return false
       this.SystemDocumentId = row.Id
       this.perview_visible = true
     },
diff --git a/src/views/trials/trials-workbench/components/needSignSysDoc.vue b/src/views/trials/trials-workbench/components/needSignSysDoc.vue
index 04e0dcdc..f2da2642 100644
--- a/src/views/trials/trials-workbench/components/needSignSysDoc.vue
+++ b/src/views/trials/trials-workbench/components/needSignSysDoc.vue
@@ -159,6 +159,7 @@ export default {
   },
   methods: {
     openAttachment(row) {
+      if (!row.AttachmentCount) return false
       this.SystemDocumentId = row.Id
       this.perview_visible = true
     },
diff --git a/src/views/trials/trials-workbench/components/needSignedSysDoc.vue b/src/views/trials/trials-workbench/components/needSignedSysDoc.vue
index a3554d70..a96db294 100644
--- a/src/views/trials/trials-workbench/components/needSignedSysDoc.vue
+++ b/src/views/trials/trials-workbench/components/needSignedSysDoc.vue
@@ -139,6 +139,7 @@ export default {
   },
   methods: {
     openAttachment(row) {
+      if (!row.AttachmentCount) return false
       this.SystemDocumentId = row.Id
       this.perview_visible = true
     },