diff --git a/epmet-module/epmet-heart/epmet-heart-server/src/main/resources/mapper/IcPartyActivityDao.xml b/epmet-module/epmet-heart/epmet-heart-server/src/main/resources/mapper/IcPartyActivityDao.xml
index 8ae5aca768..0d96fac179 100644
--- a/epmet-module/epmet-heart/epmet-heart-server/src/main/resources/mapper/IcPartyActivityDao.xml
+++ b/epmet-module/epmet-heart/epmet-heart-server/src/main/resources/mapper/IcPartyActivityDao.xml
@@ -52,7 +52,7 @@
             a.ACT_ID,
             a.GRID_ID,
             ur.UNIT_ID,
-            GROUP_CONCAT( sr.SERVICE_MATTER ) AS serviceMatter,
+            GROUP_CONCAT( distinct sr.SERVICE_MATTER ) AS serviceMatter,
             a.TITLE,
             a.TARGET,
             a.CONTENT,