diff --git a/src/components/drawers/CommonTest.vue b/src/components/drawers/CommonTest.vue
index b49469ed..ba598a46 100644
--- a/src/components/drawers/CommonTest.vue
+++ b/src/components/drawers/CommonTest.vue
@@ -160,6 +160,7 @@
             </div>
             <div class="btnbox">
               <a-input
+              min="0"
                   :disabled="info?.examinationName >= 0?true:false"
                   v-model:value="formData.passLine"
                   type="number"