diff --git a/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/bus/service/SampleAnalysisAuditServiceImpl.java b/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/bus/service/SampleAnalysisAuditServiceImpl.java
index a9c95d5c..a8f4a9bb 100644
--- a/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/bus/service/SampleAnalysisAuditServiceImpl.java
+++ b/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/business/bus/service/SampleAnalysisAuditServiceImpl.java
@@ -773,7 +773,7 @@ public class SampleAnalysisAuditServiceImpl implements SampleAnalysisAuditServic
 						        BigDecimal representativeValue = calculateRepresentativeValue(sortedValues, elementScale);
 
 								//计算后保留有效位数
-								representativeValue = EffectiveNumberFormatter.formatNumber(representativeValue, effectiveDigit);
+								representativeValue = EffectiveNumberFormatter.formatNumber2(representativeValue, elementScale, effectiveDigit);
 						        //设置判定值
 						        businessSubSampleAssessmentProjectDO.setAssessmentValue(representativeValue.toPlainString());
 						        
@@ -1326,7 +1326,7 @@ public class SampleAnalysisAuditServiceImpl implements SampleAnalysisAuditServic
 			e.printStackTrace();
 		}
 		//计算后保留有效位数
-		representativeValue = EffectiveNumberFormatter.formatNumber(representativeValue, effectiveDigit);
+		representativeValue = EffectiveNumberFormatter.formatNumber2(representativeValue, elementScale, effectiveDigit);
         //设置判定值
         businessSubSampleAssessmentProjectDO.setAssessmentValue(representativeValue.toPlainString());
         
diff --git a/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/core/util/number/EffectiveNumberFormatter.java b/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/core/util/number/EffectiveNumberFormatter.java
index a9843c94..8adb352b 100644
--- a/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/core/util/number/EffectiveNumberFormatter.java
+++ b/zt-module-qms/zt-module-qms-server/src/main/java/com/zt/plat/module/qms/core/util/number/EffectiveNumberFormatter.java
@@ -115,6 +115,11 @@ public class EffectiveNumberFormatter {
         // 如果 newScale < currentScale, setScale 会截断并使用 RoundingMode
         BigDecimal finalResult = step1.setScale(newScale, RoundingMode.HALF_EVEN);
         
+        // 6.如果小数位数大于精度，则在执行舍入
+        if (finalResult.scale() > decimalPlaces) {
+        	finalResult = finalResult.setScale(decimalPlaces, RoundingMode.HALF_EVEN);
+		}
+        
         return finalResult.toPlainString();
 
         /**
@@ -166,7 +171,7 @@ public class EffectiveNumberFormatter {
      * @param effectiveDigit 要保留的有效数字位
      * @return
      */
-    public static BigDecimal formatNumber(BigDecimal value, int effectiveDigit) {
+    public static BigDecimal formatNumber2(BigDecimal value, int decimalPlaces, int effectiveDigit) {
 
         // 如果结果为0，直接返回 (0.00...)
         if (value.compareTo(BigDecimal.ZERO) == 0) {
@@ -224,7 +229,11 @@ public class EffectiveNumberFormatter {
         // 注意：如果 newScale > currentScale, setScale 会补0
         // 如果 newScale < currentScale, setScale 会截断并使用 RoundingMode
         BigDecimal finalResult = value.setScale(newScale, RoundingMode.HALF_EVEN);
-        
+
+        // 6.如果小数位数大于精度，则在执行舍入
+        if (finalResult.scale() > decimalPlaces) {
+        	finalResult = finalResult.setScale(decimalPlaces, RoundingMode.HALF_EVEN);
+		}
         return finalResult;
     }
 
diff --git a/zt-module-qms/zt-module-qms-server/src/test/java/com/zt/plat/module/qms/EffectiveNumberFormatterTest.java b/zt-module-qms/zt-module-qms-server/src/test/java/com/zt/plat/module/qms/EffectiveNumberFormatterTest.java
index bdaaf9ad..d1aecb2b 100644
--- a/zt-module-qms/zt-module-qms-server/src/test/java/com/zt/plat/module/qms/EffectiveNumberFormatterTest.java
+++ b/zt-module-qms/zt-module-qms-server/src/test/java/com/zt/plat/module/qms/EffectiveNumberFormatterTest.java
@@ -18,6 +18,13 @@ public class EffectiveNumberFormatterTest {
         // 案例 B: 0.013500 -> 4位小数 0.0135 -> 小数2位有效 (1,3,遇5) -> 3是奇数，进位 -> 0.014
         test("0.013500", 4, 2, "0.0135 -> 3是奇数，遇5进位 -> 0.014");
 
+        System.out.println("\n=== 测试案例：后导零 ===");
+        test("0.4", 4, 2, "0.4000 -> 保留两位有效数 -> 0.40");
+
+        test("0.004", 4, 2, "0.0040 -> 保留两位有效数 -> 0.0040");
+        
+        test("0.00046", 4, 2, "0.00050 -> 超过小数精度 -> 0.0005");
+        
         System.out.println("\n=== 测试案例：多位前导零 ===");
         // 0.00012345 -> 6位小数 0.000123 -> 小数2位有效 (1,2,遇3舍去) -> 0.00012
         test("0.00012345", 6, 2, "0.000123 -> 0.00012");
@@ -31,6 +38,30 @@ public class EffectiveNumberFormatterTest {
         
         // 12345.00001234 -> 6位小数 12345.000012 -> 小数2位有效 -> 12345.000012
         test("12345.00001234", 6, 2, "前导零不计入有效位");
+
+        System.out.println("\n=== 测试案例：整体测试 ===");
+        test("0.000456", 4, 2, "0.0005");
+        test("0.00456", 4, 2, "0.0046");
+        test("0.0456", 4, 2, "0.046");
+        test("0.456", 4, 2, "0.46");
+        test("0.4000", 4, 2, "0.40");
+        test("0.0400", 4, 2, "0.040");
+        test("0.0040", 4, 2, "0.0040");
+        test("0.0004", 4, 2, "0.0004");
+        test("0.000521", 4, 2, "0.0005");
+        test("0.00521", 4, 2, "0.0052");
+        test("0.0521", 4, 2, "0.052");
+        test("0.5210", 4, 2, "0.52");
+        test("0.1251", 4, 2, "0.13");
+        test("0.01251", 4, 2, "0.013");
+        test("0.001251", 4, 2, "0.0013");
+        test("0.000125", 4, 2, "0.0001");
+        test("0.4", 4, 2, "0.40");
+        test("0.04", 4, 2, "0.040");
+        test("0.004", 4, 2, "0.0040");
+        test("0.0004", 4, 2, "0.0004");
+
+        
     }
 
     private void test(String input, int d, int s, String desc) {