diff --git a/src/views/material/back/component/addReturn.vue b/src/views/material/back/component/addReturn.vue
index 3ff71e0e..7cc6ed84 100644
--- a/src/views/material/back/component/addReturn.vue
+++ b/src/views/material/back/component/addReturn.vue
@@ -967,6 +967,7 @@ export default {
                             backApplyInfo: this.queryParams.backApplyInfo,
                             backApplyDetailsList: this.queryParams.equipmentList
                         }
+                        if (params.backApplyInfo.signUrl) delete params.backApplyInfo.signUrl
                         const res = await editBackApply(params)
                         if (res.code == 200) {
                             this.$message({ type: 'success', message: res.msg })
diff --git a/src/views/material/back/component/queryReturn.vue b/src/views/material/back/component/queryReturn.vue
index ef522c0e..1087ff96 100644
--- a/src/views/material/back/component/queryReturn.vue
+++ b/src/views/material/back/component/queryReturn.vue
@@ -729,6 +729,7 @@ export default {
                             backApplyDetailsList:
                                 this.queryParams.equipmentList,
                         }
+                        if (params.backApplyInfo.signUrl) delete params.backApplyInfo.signUrl
                         const res = await editBackApply(params)
                         if (res.code == 200) {
                             this.$message({ type: 'success', message: res.msg })
diff --git a/src/views/materialsStation/toolsBack/back/component/addReturn.vue b/src/views/materialsStation/toolsBack/back/component/addReturn.vue
index 502b1b46..ad60420e 100644
--- a/src/views/materialsStation/toolsBack/back/component/addReturn.vue
+++ b/src/views/materialsStation/toolsBack/back/component/addReturn.vue
@@ -682,6 +682,7 @@ export default {
               backApplyInfo: this.queryParams.backApplyInfo,
               backApplyDetailsList: this.queryParams.equipmentList
             }
+            if (params.backApplyInfo.signUrl) delete params.backApplyInfo.signUrl
             const res = await editBackApply(params)
             if (res.code == 200) {
               this.$message({ type: 'success', message: res.msg })
diff --git a/src/views/materialsStation/toolsBack/back/component/queryReturn.vue b/src/views/materialsStation/toolsBack/back/component/queryReturn.vue
index 1c0c5137..e41e5314 100644
--- a/src/views/materialsStation/toolsBack/back/component/queryReturn.vue
+++ b/src/views/materialsStation/toolsBack/back/component/queryReturn.vue
@@ -450,6 +450,7 @@ export default {
               backApplyInfo: this.queryParams.backApplyInfo,
               backApplyDetailsList: this.queryParams.equipmentList
             }
+            if (params.backApplyInfo.signUrl) delete params.backApplyInfo.signUrl
             const res = await editBackApply(params)
             if (res.code == 200) {
               this.$message({ type: 'success', message: res.msg })