diff --git a/jeecg-module-station-operation/src/main/java/org/jeecg/modules/service/impl/SysUserFocusStationServiceImpl.java b/jeecg-module-station-operation/src/main/java/org/jeecg/modules/service/impl/SysUserFocusStationServiceImpl.java
index e86f2512..7a48156e 100644
--- a/jeecg-module-station-operation/src/main/java/org/jeecg/modules/service/impl/SysUserFocusStationServiceImpl.java
+++ b/jeecg-module-station-operation/src/main/java/org/jeecg/modules/service/impl/SysUserFocusStationServiceImpl.java
@@ -57,7 +57,7 @@ public class SysUserFocusStationServiceImpl extends ServiceImpl<SysUserFocusStat
                         item.setLon(stations.getLon());
                         item.setLat(stations.getLat());
                         item.setStatus(stations.getStatus());
-                        item.setAltitude(Objects.isNull(stations.getElevation())?"":stations.getElevation()+"m");
+                        item.setAltitude(Objects.isNull(stations.getElevation())?"--":stations.getElevation()+"m");
                     }
                 }
             });