diff --git a/src/DatabaseServices/Entity/Board.ts b/src/DatabaseServices/Entity/Board.ts
index f708e599a..683074c51 100644
--- a/src/DatabaseServices/Entity/Board.ts
+++ b/src/DatabaseServices/Entity/Board.ts
@@ -596,10 +596,11 @@ export class Board extends ExtrudeSolid
     {
         if (!this.contourCurve || cu.EndParam !== this.contourCurve.EndParam || !this.BoardProcessOption.drillType)
         {
+            let drillTypes = [...userConfig.DrillConfigs.keys(), "不排"];
             let defaultType = this._BoardProcessOption.drillType;
-            if (!defaultType)
+            if (!defaultType || !drillTypes.includes(defaultType))
             {
-                defaultType = userConfig.DrillConfigs.size > 0 ? [...userConfig.DrillConfigs.keys()][0] : "不排";
+                defaultType = drillTypes[0];
                 this._BoardProcessOption.drillType = defaultType;
             }
             this._BoardProcessOption.highDrill = Array(cu.EndParam).fill(defaultType);