diff --git a/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java
index 446bf2e..c9ccb29 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java
@@ -23,18 +23,31 @@ public interface DashboardMapper {
             """)
     Map<String, Object> findEventHeader(@Param("eventId") String eventId);
 
-    /** KPI 원자 집계(단일 행) — 부스 수·목표 부스·설계 승인·유틸리티 신청·렌더 완료. */
+    /** KPI 원자 집계(단일 행) — 부스 수·목표 부스·설계 승인·유틸리티 신청·렌더 완료.
+     *  ★부스류 집계는 홀별 "현재 작업본"(proposal 제외 최신 버전) 레이아웃만 — 배치안(proposal)
+     *  영속화·버전 누적으로 전 버전 booth 를 합산하면 KPI 가 부풀려진다(1589/600 사고, 2026-07-24). */
     @Select("""
             SELECT
               (SELECT count(*) FROM booth b JOIN layout l ON l.id = b.layout_id
-                 WHERE l.event_id = #{eventId}) AS "boothCount",
+                 WHERE l.event_id = #{eventId} AND l.status != 'proposal'
+                   AND l.version = (SELECT max(l2.version) FROM layout l2
+                                    WHERE l2.event_id = l.event_id AND l2.hall_id = l.hall_id
+                                      AND l2.status != 'proposal')) AS "boothCount",
               (SELECT COALESCE(sum(h.booth_capacity), 0) FROM hall_assignment ha
                  JOIN hall h ON h.id = ha.hall_id WHERE ha.event_id = #{eventId}) AS "targetBooths",
               (SELECT count(*) FROM booth b JOIN layout l ON l.id = b.layout_id
                  JOIN design_plan dp ON dp.booth_id = b.id
-                 WHERE l.event_id = #{eventId} AND dp.status = 'approved') AS "designApproved",
+                 WHERE l.event_id = #{eventId} AND dp.status = 'approved'
+                   AND l.status != 'proposal'
+                   AND l.version = (SELECT max(l2.version) FROM layout l2
+                                    WHERE l2.event_id = l.event_id AND l2.hall_id = l.hall_id
+                                      AND l2.status != 'proposal')) AS "designApproved",
               (SELECT count(*) FROM design_plan dp JOIN booth b ON b.id = dp.booth_id
-                 JOIN layout l ON l.id = b.layout_id WHERE l.event_id = #{eventId}) AS "designTotal",
+                 JOIN layout l ON l.id = b.layout_id WHERE l.event_id = #{eventId}
+                   AND l.status != 'proposal'
+                   AND l.version = (SELECT max(l2.version) FROM layout l2
+                                    WHERE l2.event_id = l.event_id AND l2.hall_id = l.hall_id
+                                      AND l2.status != 'proposal')) AS "designTotal",
               (SELECT count(*) FROM utility_order u WHERE u.event_id = #{eventId}) AS "utilityOrders",
               (SELECT count(*) FROM render_job r WHERE r.event_id = #{eventId} AND r.status = 'DONE') AS "renderDone"
             """)