diff --git a/src/views/modules/prod/spec-add-or-update.vue b/src/views/modules/prod/spec-add-or-update.vue
index 0f21040..67e4a18 100644
--- a/src/views/modules/prod/spec-add-or-update.vue
+++ b/src/views/modules/prod/spec-add-or-update.vue
@@ -34,7 +34,7 @@
                       clearable></el-input>
           </el-col>
           <el-col :span="4">
-            <el-button type="primary"
+            <el-button v-show="scope.row.prodPropValues[scope.row.prodPropValues.length-1].propValue" type="primary"
             class="add-input"
                        icon="el-icon-circle-plus"
                        @click="addInput()"></el-button>