diff --git a/WebContent/jsp/onl/admin/inflow/inflowGroupControlManDetail.jsp b/WebContent/jsp/onl/admin/inflow/inflowGroupControlManDetail.jsp
index 99f319d..ea2ef28 100644
--- a/WebContent/jsp/onl/admin/inflow/inflowGroupControlManDetail.jsp
+++ b/WebContent/jsp/onl/admin/inflow/inflowGroupControlManDetail.jsp
@@ -111,7 +111,8 @@ function detail(url, key) {
 				$.each(json.interfaceList, function(i, item) {
 					interfaceList.push({
 						interfaceId: item.interfaceId || item.INTERFACEID,
-						interfaceDesc: item.interfaceDesc || item.INTERFACEDESC
+						interfaceDesc: item.interfaceDesc || item.INTERFACEDESC,
+						useYn: item.useYn || item.USEYN || '1'
 					});
 				});
 			}
@@ -127,7 +128,15 @@ function renderInterfaceList() {
 	var container = $('#interfaceListContainer');
 	container.empty();
 
+	var activeCount = interfaceList.filter(function(item) {
+		return item.useYn === '1' || item.useYn === undefined;
+	}).length;
 	$('#interfaceCountNum').text(interfaceList.length);
+	if (interfaceList.length > 0 && activeCount === interfaceList.length) {
+		$('#interfaceActiveLabel').html('<strong>전체 활성</strong>');
+	} else {
+		$('#interfaceActiveLabel').html('활성 <strong id="interfaceActiveNum">' + activeCount + '</strong>개');
+	}
 
 	if (interfaceList.length === 0) {
 		container.html('<tr class="interface-empty-row" id="interfaceEmpty"><td colspan="3" class="interface-empty"><i class="material-icons">inbox</i> 매핑된 API가 없습니다</td></tr>');
@@ -157,7 +166,10 @@ function renderInterfaceList() {
 function getInterfaceListJson() {
 	var gridData = [];
 	$.each(interfaceList, function(i, item) {
-		gridData.push({interfaceId: item.interfaceId});
+		gridData.push({
+			interfaceId: item.interfaceId,
+			useYn: item.useYn !== undefined ? item.useYn : '1'
+		});
 	});
 	return JSON.stringify(gridData);
 }
@@ -381,6 +393,19 @@ function renderBucketStatus(servers) {
 			$('#summaryThresholdWrap').hide();
 		}
 
+		// 활성 API 정보 표시
+		var activeApis = interfaceList.filter(function(item) {
+			return item.useYn === '1' || item.useYn === undefined;
+		});
+		$('#summaryActiveApi').html(activeApis.length + '<span class="unit">개</span>');
+		if (activeApis.length > 0) {
+			var apiIds = activeApis.map(function(item) { return item.interfaceId; });
+			var displayText = apiIds.length <= 3 ? apiIds.join(', ') : apiIds.slice(0, 3).join(', ') + ' 외 ' + (apiIds.length - 3) + '개';
+			$('#summaryActiveApiList').text(displayText);
+		} else {
+			$('#summaryActiveApiList').text('');
+		}
+
 		$('#bucketSummary').show();
 	} else {
 		$('#bucketSummary').hide();
@@ -536,6 +561,15 @@ $(document).ready(function() {
 				item.useYn = useYn;
 			}
 		});
+		// 활성 건수 업데이트
+		var activeCount = interfaceList.filter(function(item) {
+			return item.useYn === '1' || item.useYn === undefined;
+		}).length;
+		if (interfaceList.length > 0 && activeCount === interfaceList.length) {
+			$('#interfaceActiveLabel').html('<strong>전체 활성</strong>');
+		} else {
+			$('#interfaceActiveLabel').html('활성 <strong id="interfaceActiveNum">' + activeCount + '</strong>개');
+		}
 	});
 
 	$("#btn_modify").click(function() {
@@ -816,7 +850,7 @@ $(document).ready(function() {
 				<!-- API 매핑 -->
 				<span class="section-label">API 매핑</span>
 				<div class="interface-header">
-					<span class="interface-count">매핑된 API <strong id="interfaceCountNum">0</strong>개</span>
+					<span class="interface-count">매핑된 API <strong id="interfaceCountNum">0</strong>개 (<span id="interfaceActiveLabel">활성 <strong id="interfaceActiveNum">0</strong>개</span>)</span>
 					<button type="button" class="cssbtn" id="btn_popup_interface"><i class="material-icons">add</i> 추가</button>
 				</div>
 				<div class="interface-list-wrap">
@@ -869,6 +903,11 @@ $(document).ready(function() {
 								<span class="bucket-summary-value" id="summaryThreshold">0<span class="unit">req</span></span>
 								<span class="bucket-summary-sub" id="summaryThresholdCalc"></span>
 							</div>
+							<div class="bucket-summary-item">
+								<span class="bucket-summary-label">적용 API</span>
+								<span class="bucket-summary-value" id="summaryActiveApi">0<span class="unit">개</span></span>
+								<span class="bucket-summary-sub" id="summaryActiveApiList"></span>
+							</div>
 						</div>
 					</div>
 
diff --git a/src/main/java/com/eactive/eai/rms/onl/manage/inflow/group/InflowGroupControlManService.java b/src/main/java/com/eactive/eai/rms/onl/manage/inflow/group/InflowGroupControlManService.java
index 636e550..29f7b34 100644
--- a/src/main/java/com/eactive/eai/rms/onl/manage/inflow/group/InflowGroupControlManService.java
+++ b/src/main/java/com/eactive/eai/rms/onl/manage/inflow/group/InflowGroupControlManService.java
@@ -179,7 +179,9 @@ public class InflowGroupControlManService extends BaseService {
 				InflowControlGroupMapping mapping = new InflowControlGroupMapping();
 				mapping.setInterfaceId(mappingUI.getInterfaceId());
 				mapping.setGroupId(groupId);
-				mapping.setUseYn("1");
+				// 화면에서 전달된 useYn 사용, 없으면 기본값 "1"
+				String useYn = StringUtils.isNotEmpty(mappingUI.getUseYn()) ? mappingUI.getUseYn() : "1";
+				mapping.setUseYn(useYn);
 				mapping.setModifiedBy(modifiedBy);
 				mapping.setModifiedAt(LocalDateTime.now());
 				mappingRepository.save(mapping);