diff --git a/src/Add-on/KJL/Import/KJLImport.ts b/src/Add-on/KJL/Import/KJLImport.ts
index aaf9f40b0..67bf6d087 100644
--- a/src/Add-on/KJL/Import/KJLImport.ts
+++ b/src/Add-on/KJL/Import/KJLImport.ts
@@ -385,7 +385,20 @@ async function ParseModel(model: KJL_ParamModel,
             for (let i = 0; i < curvesNum; i++)
             {
                 if (i < drillData.drillSides.length)
-                    drills[i] = types[drillData.drillSides[i]];
+                {
+                    let driType = types[drillData.drillSides[i]];
+                    if (driType === undefined)
+                    {
+                        driType = types[0];
+
+                        AppToaster.show({
+                            message: `您有${types.length - 1}个排钻,但却使用索引为${drillData.drillSides[i]}的排钻!暂时将该边转换为不排!`,
+                            timeout: 5000,
+                            intent: Intent.DANGER,
+                        }, `no_drill_index_${drillData.drillSides[i]}`);
+                    }
+                    drills[i] = driType;
+                }
                 else
                     drills[i] = last;
             }
@@ -395,7 +408,7 @@ async function ParseModel(model: KJL_ParamModel,
             if (set.size > 1)
                 br.BoardProcessOption.drillType = DrillType.More;
             else if (set.size === 1)
-                br.BoardProcessOption.drillType = (drills[0] !== "不排" ? drills[0] : types[1]) ?? "不排";
+                br.BoardProcessOption.drillType = (drills[0] !== "不排" ? drills[0] : types[1]) ?? "不排";//避免设置为不排
             else
                 br.BoardProcessOption.drillType = DrillType.Invail;
         }