diff --git a/src/views/qms/inspectionScheme/addForm.vue b/src/views/qms/inspectionScheme/addForm.vue
index 7d07f2ba6..e0c398eb2 100644
--- a/src/views/qms/inspectionScheme/addForm.vue
+++ b/src/views/qms/inspectionScheme/addForm.vue
@@ -1232,7 +1232,7 @@ const searchTableSuccess = async (formField, searchField, val, type, row) => {
         data.value.samplePieceSize = 1
         isSamplePieceSizeDisabled.value = true
       } else {
-        data.value.samplePieceSize = ''
+        data.value.samplePieceSize = 1
         isSamplePieceSizeDisabled.value = false
       }
       data.value.description = val[0].desc1