diff --git a/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/QualFilingChangeExecutor.java b/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/QualFilingChangeExecutor.java
index 15355e1a..71552f07 100644
--- a/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/QualFilingChangeExecutor.java
+++ b/safety-eval-app/src/main/java/org/qinan/safetyeval/app/executor/QualFilingChangeExecutor.java
@@ -37,6 +37,7 @@ import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
 
 import javax.annotation.Resource;
+import java.math.BigDecimal;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -615,9 +616,6 @@ public class QualFilingChangeExecutor implements QualFilingChangeApi {
             Long changeId, QualFilingChangeEntity newEntity, AggregationSaveOrEditQualFilingChangeCmd cmd) {
         QualFilingDO filingDO = qualFilingMapper.selectOne(
                 new LambdaQueryWrapper<QualFilingDO>()
-                        .select(QualFilingDO::getLegalRepresentative,
-                                QualFilingDO::getFulltimeEvaluatorCount,
-                                QualFilingDO::getRegisteredEngineerCount)
                         .eq(QualFilingDO::getId, cmd.getQualFilingChangeAddCmd().getFilingId()));
         if (filingDO == null) {
             return Collections.emptyList();
@@ -840,7 +838,7 @@ public class QualFilingChangeExecutor implements QualFilingChangeApi {
                     Objects.toString(newEntity.getRegisteredEngineerCount(), "")));
         }
         // 工作场所建筑面积(平方米)
-        if (!Objects.equals(exist.getWorkplaceArea(), newEntity.getWorkplaceArea())) {
+        if (!bigDecimalEquals(exist.getWorkplaceArea(), newEntity.getWorkplaceArea())) {
             details.add(fieldDetail(changeId, QualFilingFormStepEnum.BASIC_INFO, "备案基本信息变更",
                     "工作场所建筑面积(平方米)",
                     Objects.toString(exist.getWorkplaceArea(), ""),
@@ -982,7 +980,7 @@ public class QualFilingChangeExecutor implements QualFilingChangeApi {
 
     private void diffEquipmentField(List<QualFilingChangeDetailDO> details, Long changeId,
                                     String prefix, String fieldName, Object before, Object after) {
-        if (!Objects.equals(before, after)) {
+        if (!valueEquals(before, after)) {
             details.add(fieldDetail(changeId, QualFilingFormStepEnum.EQUIPMENT, "装备清单变更",
                     prefix + "-" + fieldName,
                     Objects.toString(before, ""),
@@ -1057,6 +1055,23 @@ public class QualFilingChangeExecutor implements QualFilingChangeApi {
         return list == null ? Collections.emptyList() : list;
     }
 
+    /**
+     * BigDecimal 数值比较（忽略 scale 差异，1.0 与 1.00 视为相等）
+     */
+    private boolean bigDecimalEquals(BigDecimal before, BigDecimal after) {
+        return before != null && after != null && before.compareTo(after) == 0;
+    }
+
+    /**
+     * 通用值比较：BigDecimal 走 compareTo 忽略 scale 差异，其余走 Objects.equals
+     */
+    private boolean valueEquals(Object before, Object after) {
+        if (before instanceof BigDecimal && after instanceof BigDecimal) {
+            return bigDecimalEquals((BigDecimal) before, (BigDecimal) after);
+        }
+        return Objects.equals(before, after);
+    }
+
     private QualFilingChangeDetailDO stepDetail(Long changeId, QualFilingFormStepEnum step,
                                                 String content, String before, String after) {
         QualFilingChangeDetailDO detail = new QualFilingChangeDetailDO();