diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/relation/ToManyRelation.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/relation/ToManyRelation.java
index a7adcc12..aaa501aa 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/relation/ToManyRelation.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/relation/ToManyRelation.java
@@ -74,6 +74,10 @@ public class ToManyRelation<SelfEntity> extends AbstractRelation<SelfEntity> {
                 }
                 String[] splitValues = ((String) targetValue).split(selfValueSplitBy);
                 for (String splitValue : splitValues) {
+                    // 排除空值
+                    if (splitValue == null || splitValue.length() == 0) {
+                        continue;
+                    }
                     //优化分割后的数据类型(防止在数据库查询时候出现隐式转换)
                     newTargetValues.add(ConvertUtil.convert(splitValue, targetFieldWrapper.getFieldType()));
                 }