diff --git a/src/views/spectrumAnalysis/components/Modals/StripModal.vue b/src/views/spectrumAnalysis/components/Modals/StripModal.vue
index f340871..09e7e06 100644
--- a/src/views/spectrumAnalysis/components/Modals/StripModal.vue
+++ b/src/views/spectrumAnalysis/components/Modals/StripModal.vue
@@ -1,6 +1,6 @@
 <template>
   <custom-modal v-model="visible" title="Ratio" :width="240" @cancel="handleReject">
-    <a-input-number :min="1" v-model="ratio"></a-input-number>
+    <a-input-number :min="-9999" v-model="ratio"></a-input-number>
 
     <div slot="custom-footer">
       <a-button type="primary" @click="handleOk">OK</a-button>