diff --git a/WebContent/WEB-INF/view/partMng/structureAscendingList.jsp b/WebContent/WEB-INF/view/partMng/structureAscendingList.jsp
index 78ecd16..9005caa 100644
--- a/WebContent/WEB-INF/view/partMng/structureAscendingList.jsp
+++ b/WebContent/WEB-INF/view/partMng/structureAscendingList.jsp
@@ -26,6 +26,48 @@ $(document).ready(function(){
 		debug: false  // 디버깅 모드 비활성화
 	});
 	
+	// Select2 선택 시 텍스트 저장
+	$('#search_partNo').on('select2:select', function (e) {
+		var data = e.params.data;
+		$('#search_partNo_text').val(data.text);
+	});
+	
+	$('#search_partName').on('select2:select', function (e) {
+		var data = e.params.data;
+		$('#search_partName_text').val(data.text);
+	});
+	
+	// 이전 검색 조건 복원
+	setTimeout(function(){
+		var prevPartNoText = '${param.search_partNo_text}';
+		var prevPartNameText = '${param.search_partName_text}';
+		var prevPartNo = '${param.search_partNo}';
+		var prevPartName = '${param.search_partName}';
+		var prevPartObjId = '${param.search_partObjId}';
+		
+		console.log("=== 검색 조건 복원 ===");
+		console.log("prevPartNoText:", prevPartNoText);
+		console.log("prevPartNameText:", prevPartNameText);
+		console.log("prevPartNo:", prevPartNo);
+		console.log("prevPartName:", prevPartName);
+		console.log("prevPartObjId:", prevPartObjId);
+		
+		// 품번과 품명은 같은 OBJID를 사용하므로, 둘 중 하나만 복원
+		if(prevPartNoText && prevPartNo){
+			// 품번이 선택되어 있었던 경우
+			console.log("품번 복원:", prevPartNoText, prevPartNo);
+			var newOption = new Option(prevPartNoText, prevPartNo, true, true);
+			$('#search_partNo').append(newOption).trigger('change');
+			$('#search_partObjId').val(prevPartNo);
+		} else if(prevPartNameText && prevPartName){
+			// 품명이 선택되어 있었던 경우
+			console.log("품명 복원:", prevPartNameText, prevPartName);
+			var newOption = new Option(prevPartNameText, prevPartName, true, true);
+			$('#search_partName').append(newOption).trigger('change');
+			$('#search_partObjId').val(prevPartName);
+		}
+	}, 500);
+	
 	$("#mainGrid").jqGrid({
         height		: 630,
         colNames	: headerNames,
@@ -82,12 +124,30 @@ $(document).ready(function(){
 	
 	//정전개 조회
 	$("#btnSearchAscending").click(function(){
+		// 품번 또는 품명 필수 체크
+		var partNo = $.trim($("#search_partNo").val());
+		var partName = $.trim($("#search_partName").val());
+		
+		if(!partNo && !partName){
+			Swal.fire('품번 또는 품명을 선택해 주세요');
+			return;
+		}
+		
 		$("#searchType").val("ascending");
 		fn_search();
 	});
 	
 	//역전개 조회
 	$("#btnSearchDescending").click(function(){
+		// 품번 또는 품명 필수 체크
+		var partNo = $.trim($("#search_partNo").val());
+		var partName = $.trim($("#search_partName").val());
+		
+		if(!partNo && !partName){
+			Swal.fire('품번 또는 품명을 선택해 주세요');
+			return;
+		}
+		
 		$("#searchType").val("descending");
 		fn_search();
 	});
@@ -100,18 +160,43 @@ $(document).ready(function(){
 		fn_excelExport($("#mainGrid"),"BOM_REPORT_정전개");
 	});
 	
-	var search_level = '${param.search_level}';
-	$(".dataTr").each(function(i){
-		var lev = $(this).attr("data-LEVEL");
-		//if(lev == 1){	//1level만 활성화
-		if(!fnc_isEmpty(search_level)){	//검색조건 LEVEL까지만 활성화
-			if(Number(lev) <= Number(search_level)){	//검색조건 LEVEL까지만 활성화
-				$(this).show();
+	// 초기 로딩 시 레벨에 따라 표시 (검색 결과 기준)
+	setTimeout(function(){
+		var searchLevel = '${param.search_level}';  // 검색 조건의 레벨
+		
+		// 최소 레벨 찾기
+		var minLevel = 999;
+		$(".dataTr").each(function(){
+			var lev = parseInt($(this).attr("data-LEVEL"));
+			if(lev < minLevel){
+				minLevel = lev;
 			}
-		}else{
-			$(this).show();	//전체 펼치기
+		});
+		
+		// 표시할 최대 레벨 결정
+		var maxDisplayLevel = minLevel;  // 기본값: 최소 레벨만
+		if(searchLevel && searchLevel != ''){
+			maxDisplayLevel = parseInt(searchLevel);
 		}
-	});
+		
+		console.log("최소 레벨:", minLevel, "표시할 최대 레벨:", maxDisplayLevel);
+		
+		// 지정된 레벨까지 표시
+		$(".dataTr").each(function(){
+			var lev = parseInt($(this).attr("data-LEVEL"));
+			if(lev <= maxDisplayLevel){
+				$(this).show();
+				
+				// 표시된 항목 중 하위가 있고 아직 펼쳐지지 않은 항목은 Minus 아이콘으로 변경
+				if(lev < maxDisplayLevel){
+					var $img = $(this).find(".btnToggle");
+					if($img.length > 0 && $img.attr("src").indexOf("Plus") > -1){
+						$img.attr("src", "/images/btnMinus.png");
+					}
+				}
+			}
+		});
+	}, 100);  // DOM 로딩 대기
 	/*
 	//클릭시 하위정보를 토글한다.
 	$(".dataTr").click(function(){
@@ -707,6 +792,8 @@ function fn_excelExport(pGridObj,pFileName){
 <input type="hidden" name="search" id="search" value="Y">
 <input type="hidden" name="actionType" id="actionType" value="" />
 <input type="hidden" name="searchType" id="searchType" value="ascending" />
+<input type="hidden" name="search_partNo_text" id="search_partNo_text" value="${param.search_partNo_text}" />
+<input type="hidden" name="search_partName_text" id="search_partName_text" value="${param.search_partName_text}" />
  	<div class="min_part_enroll">
  		<div class="content-box">
  			<div class="">	<!-- content-box-s -->
@@ -766,16 +853,29 @@ function fn_excelExport(pGridObj,pFileName){
 									<select name="search_partNo" id="search_partNo" class="select2-part" style="width: 100%;">
 										<option value="">품번 선택</option>
 									</select>
-									<input type="hidden" name="search_partObjId" id="search_partObjId" value=""/>
+									<input type="hidden" name="search_partObjId" id="search_partObjId" value="${param.search_partObjId}"/>
 								</td>
 								<td class="align_r">
 									<label for="" class="">품명</label>
 								</td>
-								<td colspan="3">
+								<td>
 									<select name="search_partName" id="search_partName" class="select2-part" style="width: 100%;">
 										<option value="">품명 선택</option>
 									</select>
 								</td>
+								<td class="align_r">
+									<label for="" class="">표시 레벨</label>
+								</td>
+								<td>
+									<select name="search_level" id="search_level" class="select2" style="width: 100%;">
+										<option value="">선택</option>
+										<option value="1" ${param.search_level eq '1'?'selected':''}>1레벨</option>
+										<option value="2" ${param.search_level eq '2'?'selected':''}>2레벨</option>
+										<option value="3" ${param.search_level eq '3'?'selected':''}>3레벨</option>
+										<option value="4" ${param.search_level eq '4'?'selected':''}>4레벨</option>
+										<option value="5" ${param.search_level eq '5'?'selected':''}>5레벨</option>
+									</select>
+								</td>
 
 								<!-- <td class="align_r">
 									<label for="" class="">품번</label>
@@ -931,22 +1031,17 @@ function fn_excelExport(pGridObj,pFileName){
 										<tr class="dataTr" data-LEVEL="${item.LEVEL}" data-REAL_LEVEL="${item.LEV}" data-BOM_REPORT_OBJID="${item.BOM_REPORT_OBJID}" data-TOP_OBJID="${item.ROOT_OBJID}" 
 												data-SUB_TOP_OBJID="${item.SUB_ROOT_OBJID}" data-OBJID="${item.PART_OBJID}${status.index}" style="display:none;">
 											<td>
-												<c:if test="${item.LEAF eq '0'}">
-													<c:choose>
-													<c:when test="${empty param.search_level}">
-													<img src="/images/btnMinus.png" width="13px" height="13px" class="btnToggle" style="${item.LEVEL eq '1' and item.LEAF eq '0'?'cursor:pointer;':''}" data-BOM_REPORT_OBJID="${item.BOM_REPORT_OBJID}" 
-															data-OBJID="${item.PART_OBJID}${status.index}" data-REAL_LEVEL="${item.LEV}" data-TOP_OBJID="${item.ROOT_OBJID}" data-SUB_TOP_OBJID="${item.SUB_ROOT_OBJID}">
+												<c:choose>
+													<c:when test="${item.LEAF eq '0'}">
+														<!-- 하위 항목이 있음: Plus 아이콘 표시 -->
+														<img src="/images/btnPlus.png" width="13px" height="13px" class="btnToggle" style="cursor:pointer;" data-BOM_REPORT_OBJID="${item.BOM_REPORT_OBJID}" 
+																data-OBJID="${item.PART_OBJID}${status.index}" data-REAL_LEVEL="${item.LEV}" data-TOP_OBJID="${item.ROOT_OBJID}" data-SUB_TOP_OBJID="${item.SUB_ROOT_OBJID}">
 													</c:when>
-													<c:when test="${param.search_level > item.LEV}">
-													<img src="/images/btnMinus.png" width="13px" height="13px" class="btnToggle" style="${item.LEVEL eq '1' and item.LEAF eq '0'?'cursor:pointer;':''}" data-BOM_REPORT_OBJID="${item.BOM_REPORT_OBJID}" 
-															data-OBJID="${item.PART_OBJID}${status.index}" data-REAL_LEVEL="${item.LEV}" data-TOP_OBJID="${item.ROOT_OBJID}" data-SUB_TOP_OBJID="${item.SUB_ROOT_OBJID}">
-													</c:when>
-													<c:when test="${param.search_level <= item.LEV}">
-													<img src="/images/btnPlus.png" width="13px" height="13px" class="btnToggle" style="${item.LEVEL eq '1' and item.LEAF eq '0'?'cursor:pointer;':''}" data-BOM_REPORT_OBJID="${item.BOM_REPORT_OBJID}" 
-															data-OBJID="${item.PART_OBJID}${status.index}" data-REAL_LEVEL="${item.LEV}" data-TOP_OBJID="${item.ROOT_OBJID}" data-SUB_TOP_OBJID="${item.SUB_ROOT_OBJID}">
-													</c:when>
-													</c:choose>
-												</c:if>
+													<c:otherwise>
+														<!-- 하위 항목이 없음: - 표시 -->
+														<span style="display:inline-block; width:13px; text-align:center; color:#999;">-</span>
+													</c:otherwise>
+												</c:choose>
 											</td>
 											<c:forEach var="i" begin="1" end="${item.MAX_LEVEL}">
 												<c:if test="${item.LEVEL eq i}">
diff --git a/src/com/pms/mapper/partMng.xml b/src/com/pms/mapper/partMng.xml
index 01b0b45..8b962e5 100644
--- a/src/com/pms/mapper/partMng.xml
+++ b/src/com/pms/mapper/partMng.xml
@@ -6038,7 +6038,7 @@ SELECT T1.LEV, T1.BOM_REPORT_OBJID, T1.ROOT_PART_NO, T1.PATH, T1.LEAF, T2.*
 			BT.ITEM_QTY,
 			BT.QTY AS QTY_TEMP,
 			BT.SEQ,
-			BT.LEAF,
+			-- BT.LEAF,  -- 재귀 CTE의 LEAF는 항상 0이므로 제거 (아래에서 재계산)
 			-- PART 정보
 			PM.OBJID AS PART_OBJID,
 			PM.PART_NO,
@@ -6424,12 +6424,21 @@ SELECT T1.LEV, T1.BOM_REPORT_OBJID, T1.ROOT_PART_NO, T1.PATH, T1.LEAF, T2.*
 		)
 		SELECT 
 			BT.BOM_REPORT_OBJID,
-			BT.LEV,
-			BT.LEV AS LEVEL,
+			-- 역전개는 레벨을 거꾸로 표시 (최상위가 1레벨)
+			(ML.MAX_LEVEL - BT.LEV + 1) AS LEV,
+			(ML.MAX_LEVEL - BT.LEV + 1) AS LEVEL,
 			BT.QTY,
 			BT.ITEM_QTY,
 			BT.QTY AS P_QTY,
 			BT.SEQ,
+			-- LEAF 계산 (역전개: 하위 항목이 있는지 체크 - 정전개와 동일)
+			(
+				SELECT CASE WHEN COUNT(*) > 0 THEN 0 ELSE 1 END
+				FROM BOM_PART_QTY BPQ2
+				WHERE BPQ2.PARENT_OBJID = BT.CHILD_OBJID
+				  AND BPQ2.BOM_REPORT_OBJID = BT.BOM_REPORT_OBJID
+				  AND COALESCE(BPQ2.STATUS, '') NOT IN ('deleting', 'deleted')
+			) AS LEAF,
 			-- PART 정보
 			PM.OBJID AS PART_OBJID,
 			PM.PART_NO,
@@ -6472,7 +6481,7 @@ SELECT T1.LEV, T1.BOM_REPORT_OBJID, T1.ROOT_PART_NO, T1.PATH, T1.LEAF, T2.*
 		
 		ORDER BY 
 			PBR.REGDATE DESC,
-			BT.LEV,
+			(ML.MAX_LEVEL - BT.LEV + 1),  -- 역전개: 레벨 역순
 			BT.PATH
 	</select>