diff --git a/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/dao/SysUserMessageDao.java b/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/dao/SysUserMessageDao.java
index 4694ef1..4afe975 100644
--- a/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/dao/SysUserMessageDao.java
+++ b/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/dao/SysUserMessageDao.java
@@ -13,5 +13,11 @@ public interface SysUserMessageDao extends R2dbcRepository<SysUserMessageEntity,
 
     Flux<SysUserMessageEntity> findByUserIdOrderByCreateTimeDesc(Long userId);
 
+    Flux<SysUserMessageEntity> findByDeletedAtIsNull();
+
     Mono<Long> countByUserIdAndIsRead(Long userId, String isRead);
+
+    Mono<Long> countByDeletedAtIsNull();
+
+    Mono<Void> deleteByIdAndDeletedAtIsNull(Long id);
 }
diff --git a/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/repository/SysUserMessageRepository.java b/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/repository/SysUserMessageRepository.java
new file mode 100644
index 0000000..143e5e4
--- /dev/null
+++ b/novalon-manage-api/manage-sys/src/main/java/cn/novalon/manage/sys/infrastructure/db/repository/SysUserMessageRepository.java
@@ -0,0 +1,58 @@
+package cn.novalon.manage.sys.infrastructure.db.repository;
+
+import cn.novalon.manage.sys.core.domain.SysUserMessage;
+import cn.novalon.manage.sys.infrastructure.db.converter.SysUserMessageConverter;
+import cn.novalon.manage.sys.infrastructure.db.dao.SysUserMessageDao;
+import cn.novalon.manage.sys.infrastructure.db.entity.SysUserMessageEntity;
+import org.springframework.stereotype.Repository;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+@Repository
+public class SysUserMessageRepository {
+
+    private final SysUserMessageDao dao;
+    private final SysUserMessageConverter converter;
+
+    public SysUserMessageRepository(SysUserMessageDao dao, SysUserMessageConverter converter) {
+        this.dao = dao;
+        this.converter = converter;
+    }
+
+    public Mono<SysUserMessage> findById(Long id) {
+        return dao.findById(id)
+                .map(converter::toDomain);
+    }
+
+    public Mono<SysUserMessage> save(SysUserMessage sysUserMessage) {
+        return dao.save(converter.toEntity(sysUserMessage))
+                .map(converter::toDomain);
+    }
+
+    public Mono<Void> deleteById(Long id) {
+        return dao.deleteById(id);
+    }
+
+    public Flux<SysUserMessage> findByUserIdAndIsReadOrderByCreateTimeDesc(Long userId, String isRead) {
+        return dao.findByUserIdAndIsReadOrderByCreateTimeDesc(userId, isRead)
+                .map(converter::toDomain);
+    }
+
+    public Flux<SysUserMessage> findByUserIdOrderByCreateTimeDesc(Long userId) {
+        return dao.findByUserIdOrderByCreateTimeDesc(userId)
+                .map(converter::toDomain);
+    }
+
+    public Flux<SysUserMessage> findAll() {
+        return dao.findByDeletedAtIsNull()
+                .map(converter::toDomain);
+    }
+
+    public Mono<Long> countByUserIdAndIsRead(Long userId, String isRead) {
+        return dao.countByUserIdAndIsRead(userId, isRead);
+    }
+
+    public Mono<Long> count() {
+        return dao.countByDeletedAtIsNull();
+    }
+}