diff --git a/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/GammaFileUtil.java b/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/GammaFileUtil.java
index 50ac3f81..523d9c41 100644
--- a/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/GammaFileUtil.java
+++ b/jeecg-module-beta-gamma-analyser/src/main/java/org/jeecg/common/util/GammaFileUtil.java
@@ -2,6 +2,7 @@ package org.jeecg.common.util;
 
 import cn.hutool.core.io.FileUtil;
 import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.StrUtil;
 import com.alibaba.fastjson.JSON;
 import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
 import com.baomidou.mybatisplus.core.toolkit.StringPool;
@@ -2813,16 +2814,28 @@ public class GammaFileUtil extends AbstractLogOrReport {
             strBuffer.append(System.lineSeparator());
             List<CalMDCInfo> mdcInfos = middleData.mdcInfos;
             String mdcTitle = "%-15s%-18s%-15s%-15s";
-            String[] mdcData = new String[]{" Nuclide", "Halflife", "MDC", "MDA(Bq)"};
-            strBuffer.append(rowFormat(mdcTitle, mdcData));
-            strBuffer.append(System.lineSeparator());
+
+            StringBuffer mdcSB = new StringBuffer();
+            boolean isMda = false;
             for (CalMDCInfo mdcDto : mdcInfos) {
                 mdcDto.format();
-                strBuffer.append(rowFormat(mdcTitle, StringPool.SPACE + mdcDto.getNuclideName(),
+                mdcSB.append(rowFormat(mdcTitle, StringPool.SPACE + mdcDto.getNuclideName(),
                         mdcDto.getHalfLifeStr(), mdcDto.getMdcStr(), mdcDto.getMdaStr()));
                 //换行
-                strBuffer.append(System.lineSeparator());
+                mdcSB.append(System.lineSeparator());
+                if (!isMda && StrUtil.isNotBlank(mdcDto.getMdaStr())) {
+                    isMda = true;
+                }
             }
+            String[] mdcData = new String[]{" Nuclide", "Halflife", "MDC(uBq/m3)", ""};
+            // 如果有 MDA 就显示标题
+            if (isMda) {
+                mdcData = new String[]{" Nuclide", "Halflife", "MDC(uBq/m3)", "MDA(uBq)"};
+            }
+            strBuffer.append(rowFormat(mdcTitle, mdcData));
+            strBuffer.append(System.lineSeparator());
+            strBuffer.append(mdcSB);
+
             //换行
             strBuffer.append(System.lineSeparator());
             //换行