diff --git a/backend/src/main/java/com/yfd/platform/config/RedisConfig.java b/backend/src/main/java/com/yfd/platform/config/RedisConfig.java
index f57ac0e2..e23850cb 100644
--- a/backend/src/main/java/com/yfd/platform/config/RedisConfig.java
+++ b/backend/src/main/java/com/yfd/platform/config/RedisConfig.java
@@ -63,6 +63,7 @@ public class RedisConfig {
         Map<String, RedisCacheConfiguration> cacheConfigs = new HashMap<>();
         cacheConfigs.put("dictCache", defaultConfig.entryTtl(Duration.ofHours(6)));
         cacheConfigs.put("dataCache", defaultConfig.entryTtl(Duration.ofMinutes(5)));
+        cacheConfigs.put("engInfoCache", defaultConfig.entryTtl(Duration.ofHours(2)));
 
         return RedisCacheManager.builder(redisConnectionFactory)
                 .cacheDefaults(defaultConfig)
diff --git a/backend/src/main/java/com/yfd/platform/qgc_base/service/impl/SdEngInfoBHServiceImpl.java b/backend/src/main/java/com/yfd/platform/qgc_base/service/impl/SdEngInfoBHServiceImpl.java
index be1aa4b8..65b23e36 100644
--- a/backend/src/main/java/com/yfd/platform/qgc_base/service/impl/SdEngInfoBHServiceImpl.java
+++ b/backend/src/main/java/com/yfd/platform/qgc_base/service/impl/SdEngInfoBHServiceImpl.java
@@ -38,6 +38,8 @@ import com.yfd.platform.system.service.IAdminAuthService;
 import com.yfd.platform.utils.QgcQueryWrapperUtil;
 import com.yfd.platform.utils.SecurityUtils;
 import jakarta.annotation.Resource;
+import org.springframework.cache.annotation.CacheEvict;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
@@ -104,16 +106,19 @@ public class SdEngInfoBHServiceImpl extends ServiceImpl<SdEngInfoBHMapper, SdEng
     }
 
     @Override
+    @Cacheable(cacheNames = "engInfoCache", key = "'eng:baseId:' + #baseId")
     public List<SdEngInfoBH> getByBaseId(String baseId) {
         return engInfoBHMapper.selectByBaseId(baseId);
     }
 
     @Override
+    @Cacheable(cacheNames = "engInfoCache", key = "'eng:hycd:' + #hycd")
     public List<SdEngInfoBH> getByHycd(String hycd) {
         return engInfoBHMapper.selectByHycd(hycd);
     }
 
     @Override
+    @Cacheable(cacheNames = "engInfoCache", key = "'eng:rvcd:' + #rvcd + ':' + #reachcd")
     public List<SdEngInfoBH> getByRvcd(String rvcd,String reachcd) {
         return engInfoBHMapper.selectByRvcd(rvcd,reachcd);
     }
@@ -223,6 +228,7 @@ public class SdEngInfoBHServiceImpl extends ServiceImpl<SdEngInfoBHMapper, SdEng
     }
 
     @Override
+    @CacheEvict(cacheNames = "engInfoCache", allEntries = true)
     @Transactional(rollbackFor = Exception.class)
     public boolean addEngInfo(SdEngInfoBH engInfo, String source) {
         fillRelatedNameFields(engInfo);
@@ -239,6 +245,7 @@ public class SdEngInfoBHServiceImpl extends ServiceImpl<SdEngInfoBHMapper, SdEng
     }
 
     @Override
+    @CacheEvict(cacheNames = "engInfoCache", allEntries = true)
     @Transactional(rollbackFor = Exception.class)
     public boolean updateEngInfo(SdEngInfoBH engInfo, String source) {
         SdEngInfoBH before = engInfo == null ? null : this.getById(engInfo.getStcd());
@@ -509,6 +516,7 @@ public class SdEngInfoBHServiceImpl extends ServiceImpl<SdEngInfoBHMapper, SdEng
     }
 
     @Override
+    @CacheEvict(cacheNames = "engInfoCache", allEntries = true)
     @Transactional(rollbackFor = Exception.class)
     public boolean deleteEngInfo(List<String> ids, String source) {
         List<String> stcdList = ids == null ? new ArrayList<>() : ids.stream()