diff --git a/lab-service/lab-lims/src/main/java/org/springblade/lims/service/impl/ExamineReagentServiceImpl.java b/lab-service/lab-lims/src/main/java/org/springblade/lims/service/impl/ExamineReagentServiceImpl.java
index 54ddfa0..fad696a 100644
--- a/lab-service/lab-lims/src/main/java/org/springblade/lims/service/impl/ExamineReagentServiceImpl.java
+++ b/lab-service/lab-lims/src/main/java/org/springblade/lims/service/impl/ExamineReagentServiceImpl.java
@@ -27,11 +27,29 @@ public class ExamineReagentServiceImpl implements IExamineReagentService {
     public Map<String, List<ExamineExcel>> getGroupExcelData(int group, List<ExamineExcel> excelData) {
         Map<String, List<ExamineExcel>> groupExcelData = new HashMap<>();
 
+//        for (int i = 0; i < group; i++) {
+//            List<ExamineExcel> excels = new ArrayList<>();
+//            for (int j = i * 8 + i; j < (i + 1) * 8 + i; j++) {
+//                ExamineExcel excel = excelData.get(j);
+//                excels.add(excel);
+//            }
+//            groupExcelData.put((i + 1) + "", excels);
+//        }
+
+        // 有效数据最大索引
+        int maxIndex = excelData.size() - 1;
         for (int i = 0; i < group; i++) {
             List<ExamineExcel> excels = new ArrayList<>();
-            for (int j = i * 8 + i; j < (i + 1) * 8 + i; j++) {
-                ExamineExcel excel = excelData.get(j);
-                excels.add(excel);
+            //每组起始、结束索引（你的原逻辑）
+            int start = i * 8 + i;
+            int end = (i + 1) * 8 + i;
+
+            for (int j = start; j < end; j++) {
+                //超出数据范围就停止，不报错
+                if (j > maxIndex) {
+                    break;
+                }
+                excels.add(excelData.get(j));
             }
             groupExcelData.put((i + 1) + "", excels);
         }