diff --git a/src/main/java/com/xujie/sys/modules/sampletracking/mapper/SampleProofTrackingMapper.java b/src/main/java/com/xujie/sys/modules/sampletracking/mapper/SampleProofTrackingMapper.java
index 0216c3d5..3982588b 100644
--- a/src/main/java/com/xujie/sys/modules/sampletracking/mapper/SampleProofTrackingMapper.java
+++ b/src/main/java/com/xujie/sys/modules/sampletracking/mapper/SampleProofTrackingMapper.java
@@ -74,6 +74,11 @@ public interface SampleProofTrackingMapper {
                         @Param("actualityDeliveryDate") Date actualityDeliveryDate,
                         @Param("updateBy") String updateBy);
 
+    int updateTrackingProofingStatusAndActualityDate(@Param("trackingId") Integer trackingId,
+                                                     @Param("proofingStatus") String proofingStatus,
+                                                     @Param("actualityDeliveryDate") Date actualityDeliveryDate,
+                                                     @Param("updateBy") String updateBy);
+
     void deleteProofTrackingLogByTrackingId(@Param("trackingId") Integer trackingId);
 
     void deleteProcessValuesByTrackingId(@Param("trackingId") Integer trackingId);
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 0e868ef4..e2786370 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
@@ -64,6 +64,9 @@ public class SampleProofTrackingServiceImpl implements SampleProofTrackingServic
     private static final String DEFAULT_PROCESS_CONFIG_BU = "*";
     private static final String DELIVERY_PACKAGE_PROCESS_CODE = "deliveryPackage";
     private static final String DELIVERY_PACKAGE_PROCESS_NAME = "Delivery&Package";
+    private static final String TRACKING_PROOFING_STATUS_IN_PROGRESS = "进行中";
+    private static final String TRACKING_PROOFING_STATUS_FINISHED = "打样完成";
+    private static final String NPI_PROOFING_STATUS_FINISHED = "完成";
     private static final int NPI_ID_THRESHOLD = 100000;
 
     /**
@@ -931,6 +934,9 @@ public class SampleProofTrackingServiceImpl implements SampleProofTrackingServic
             if (isCompletedStatus(status)) {
                 Date completionDate = resolveDeliveryPackageCompletionDate(newValue, data.getActualDate(), trackingData.getActualityDeliveryDate());
                 markProofingCompletedAndSyncNpi(trackingData, completionDate, updateBy);
+            } else {
+                // 误点“已完成”时允许从 Delivery&Package 回退，避免整单长期锁死在打样完成态。
+                rollbackProofingCompletedAndSyncNpi(trackingData, updateBy);
             }
         }
     }
@@ -1135,7 +1141,9 @@ public class SampleProofTrackingServiceImpl implements SampleProofTrackingServic
         if (isBlank(normalizedStatus) || "未完成".equals(normalizedStatus) || "进行中".equals(normalizedStatus)) {
             return false;
         }
-        if ("已完成".equals(normalizedStatus) || "打样完成".equals(normalizedStatus) || "完成".equals(normalizedStatus)) {
+        if ("已完成".equals(normalizedStatus)
+                || TRACKING_PROOFING_STATUS_FINISHED.equals(normalizedStatus)
+                || NPI_PROOFING_STATUS_FINISHED.equals(normalizedStatus)) {
             return true;
         }
         return normalizedStatus.contains("完成") && !normalizedStatus.contains("未");
@@ -1169,7 +1177,7 @@ public class SampleProofTrackingServiceImpl implements SampleProofTrackingServic
         }
         int syncedRows = sampleTrackingMapper.updateNpiProofingStatusAndActualityDate(
                 npiProofingId,
-                "完成",
+                NPI_PROOFING_STATUS_FINISHED,
                 completionDate,
                 updateBy
         );
@@ -1178,6 +1186,49 @@ public class SampleProofTrackingServiceImpl implements SampleProofTrackingServic
         }
     }
 
+    private void rollbackProofingCompletedAndSyncNpi(ProofTrackingData trackingData,
+                                                     String updateBy) {
+        if (trackingData == null || trackingData.getTrackingId() == null) {
+            throw new RuntimeException("跟踪记录不存在，无法撤回打样完成");
+        }
+        if (!isTrackingProofingCompleted(trackingData.getProofingStatus())) {
+            return;
+        }
+        int trackingUpdatedRows = sampleProofTrackingMapper.updateTrackingProofingStatusAndActualityDate(
+                trackingData.getTrackingId(),
+                TRACKING_PROOFING_STATUS_IN_PROGRESS,
+                null,
+                updateBy
+        );
+        if (trackingUpdatedRows <= 0) {
+            throw new RuntimeException("撤回打样完成失败，跟踪记录不存在");
+        }
+        Integer npiProofingId = resolveNpiProofingIdForAutoComplete(trackingData);
+        if (npiProofingId == null) {
+            // 历史未同步到 NPI 的记录允许仅回退 tracking，避免误点后无法恢复。
+            return;
+        }
+        int syncedRows = sampleTrackingMapper.updateNpiProofingStatusAndActualityDate(
+                npiProofingId,
+                TRACKING_PROOFING_STATUS_IN_PROGRESS,
+                null,
+                updateBy
+        );
+        if (syncedRows <= 0) {
+            throw new RuntimeException("撤回NPI打样状态失败，请先确认NPI打样单是否存在");
+        }
+    }
+
+    private boolean isTrackingProofingCompleted(String proofingStatus) {
+        if (isBlank(proofingStatus)) {
+            return false;
+        }
+        String normalizedStatus = proofingStatus.trim();
+        return TRACKING_PROOFING_STATUS_FINISHED.equals(normalizedStatus)
+                || "已完成".equals(normalizedStatus)
+                || NPI_PROOFING_STATUS_FINISHED.equals(normalizedStatus);
+    }
+
     private Integer resolveNpiProofingIdForAutoComplete(ProofTrackingData trackingData) {
         if (trackingData == null) {
             return null;
diff --git a/src/main/resources/mapper/sampletracking/SampleProofTrackingMapper.xml b/src/main/resources/mapper/sampletracking/SampleProofTrackingMapper.xml
index a7ae45ee..f81111c8 100644
--- a/src/main/resources/mapper/sampletracking/SampleProofTrackingMapper.xml
+++ b/src/main/resources/mapper/sampletracking/SampleProofTrackingMapper.xml
@@ -472,6 +472,15 @@
         WHERE id = #{trackingId}
     </update>
 
+    <update id="updateTrackingProofingStatusAndActualityDate">
+        UPDATE plm_proofing_information_tracking
+        SET proofing_status = #{proofingStatus},
+            actuality_delivery_date = #{actualityDeliveryDate,jdbcType=DATE},
+            update_date = GETDATE(),
+            update_by = #{updateBy}
+        WHERE id = #{trackingId}
+    </update>
+
     <delete id="deleteProofTrackingLogByTrackingId">
         DELETE FROM plm_proofing_information_tracking_log
         WHERE tracking_id = #{trackingId}