diff --git a/src/main/java/com/xujie/sys/modules/sampletracking/service/impl/SampleProofTrackingServiceImpl.java b/src/main/java/com/xujie/sys/modules/sampletracking/service/impl/SampleProofTrackingServiceImpl.java
index 4274cbd7..b922fd88 100644
--- a/src/main/java/com/xujie/sys/modules/sampletracking/service/impl/SampleProofTrackingServiceImpl.java
+++ b/src/main/java/com/xujie/sys/modules/sampletracking/service/impl/SampleProofTrackingServiceImpl.java
@@ -1046,45 +1046,33 @@ public class SampleProofTrackingServiceImpl implements SampleProofTrackingServic
             }
             return rows;
         }
-        Map<String, ProofTrackingProcessColumnData> buRowMap = new HashMap<>();
-        for (ProofTrackingProcessColumnData item : buRows) {
-            if (item == null || isBlank(item.getCode())) {
-                continue;
-            }
-            String code = item.getCode().trim();
-            if (!buRowMap.containsKey(code)) {
-                buRowMap.put(code, item);
-            }
-        }
         List<ProofTrackingProcessColumnData> rows = new ArrayList<>();
         Set<String> usedCodeSet = new LinkedHashSet<>();
-        // 以默认工序顺序为骨架，BU 有配置时覆盖；缺失项继承默认配置，避免“不可见即消失”。
-        for (ProofTrackingProcessColumnData defaultRow : defaultRows) {
-            if (defaultRow == null || isBlank(defaultRow.getCode())) {
+        // 回显顺序以 BU 已保存的 sort_no 为准，避免弹窗重开后被默认顺序覆盖。
+        for (ProofTrackingProcessColumnData buRow : buRows) {
+            if (buRow == null || isBlank(buRow.getCode())) {
                 continue;
             }
-            String code = defaultRow.getCode().trim();
-            ProofTrackingProcessColumnData merged = buRowMap.get(code);
-            if (merged == null) {
-                merged = cloneProcessColumn(defaultRow);
-                merged.setSite(site);
-                merged.setBuNo(buNo);
-            } else {
-                merged = cloneProcessColumn(merged);
+            String code = buRow.getCode().trim();
+            if (usedCodeSet.contains(code)) {
+                continue;
             }
-            rows.add(merged);
+            rows.add(cloneProcessColumn(buRow));
             usedCodeSet.add(code);
         }
-        // 追加 BU 独有工序，确保定制工序不丢失。
-        for (ProofTrackingProcessColumnData buRow : buRows) {
-            if (buRow == null || isBlank(buRow.getCode())) {
+        // 默认工序仅用于补齐 BU 缺失项，确保新增工序不会在配置弹窗中丢失。
+        for (ProofTrackingProcessColumnData defaultRow : defaultRows) {
+            if (defaultRow == null || isBlank(defaultRow.getCode())) {
                 continue;
             }
-            String code = buRow.getCode().trim();
+            String code = defaultRow.getCode().trim();
             if (usedCodeSet.contains(code)) {
                 continue;
             }
-            rows.add(cloneProcessColumn(buRow));
+            ProofTrackingProcessColumnData merged = cloneProcessColumn(defaultRow);
+            merged.setSite(site);
+            merged.setBuNo(buNo);
+            rows.add(merged);
             usedCodeSet.add(code);
         }
         return rows;