diff --git a/frontend/src/views/machine/testScript/components/testScriptHarmTab.vue b/frontend/src/views/machine/testScript/components/testScriptHarmTab.vue
index f990d40..5696c3d 100644
--- a/frontend/src/views/machine/testScript/components/testScriptHarmTab.vue
+++ b/frontend/src/views/machine/testScript/components/testScriptHarmTab.vue
@@ -106,7 +106,7 @@
                 type="number"
                 placeholder="含有率"
                 style="width: 80px"
-                onkeypress="return (/[\d]/.test(String.fromCharCode(event.keyCode)))"
+                onkeypress="return (/[\d.-]/.test(String.fromCharCode(event.keyCode)))"
                 @input="validateInput('famp',1)"
                 clearable
             />