diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/basic/service/impl/BsAssignServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/basic/service/impl/BsAssignServiceImpl.java
index 8b48cb708..a1d271362 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/basic/service/impl/BsAssignServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/basic/service/impl/BsAssignServiceImpl.java
@@ -53,10 +53,7 @@ import org.springblade.system.cache.DictCache;
 import org.springframework.stereotype.Service;
 
 import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.stream.Collectors;
 
 /**
@@ -129,12 +126,17 @@ public class BsAssignServiceImpl extends BaseServiceImpl<BsAssignMapper, BsAssig
 
 		for (BsAssignEntity entity : entities) {
 			// 单面积区间
-			if (entity.getUpArea().compareTo(entity.getLowArea()) < 0) {
-				R.fail("单面积上限不能小于单面积下限") ;
+			if (Objects.nonNull(entity.getLowArea()) && Objects.nonNull(entity.getUpArea())) {
+				if (entity.getUpArea().compareTo(entity.getLowArea()) < 0) {
+					R.fail("单面积上限不能小于单面积下限") ;
+				}
 			}
+
 			// 单批面积区间
-			if (entity.getSingleUpArea().compareTo(entity.getSingleDownArea()) < 0) {
-				R.fail("单批面积上限不能小于单批面积下限");
+			if (Objects.nonNull(entity.getSingleDownArea()) && Objects.nonNull(entity.getSingleUpArea())) {
+				if (entity.getSingleUpArea().compareTo(entity.getSingleDownArea()) < 0) {
+					R.fail("单批面积上限不能小于单批面积下限");
+				}
 			}
 
 			// 拼接质量等级名称