diff --git a/style.css b/style.css
index 2882889..6e61810 100644
--- a/style.css
+++ b/style.css
@@ -1257,6 +1257,12 @@
   flex: 0 0 auto;
 }
 
+.bme-memory-list-filters .bme-floor-input {
+  max-width: 120px;
+  flex: 0 0 auto;
+  font-variant-numeric: tabular-nums;
+}
+
 .bme-memory-list-scroll {
   flex: 1;
   overflow-y: auto;
diff --git a/ui/panel.js b/ui/panel.js
index 9b3969b..0372879 100644
--- a/ui/panel.js
+++ b/ui/panel.js
@@ -1550,6 +1550,36 @@ function _getMemoryNodeTypeClass(type) {
   }
 }
 
+function _parseFloorFilter(raw) {
+  const text = String(raw || "").trim();
+  if (!text) return null;
+  const ranges = [];
+  for (const part of text.split(/[,，\s]+/)) {
+    const rangeParts = part.split(/[-~]/);
+    if (rangeParts.length === 2) {
+      const lo = parseInt(rangeParts[0], 10);
+      const hi = parseInt(rangeParts[1], 10);
+      if (!Number.isNaN(lo) && !Number.isNaN(hi)) {
+        ranges.push([Math.min(lo, hi), Math.max(lo, hi)]);
+      }
+    } else {
+      const n = parseInt(part, 10);
+      if (!Number.isNaN(n)) ranges.push([n, n]);
+    }
+  }
+  return ranges.length ? ranges : null;
+}
+
+function _matchesFloorFilter(node, ranges) {
+  const seq = node.seq ?? -1;
+  const seqLo = node.seqRange?.[0] ?? seq;
+  const seqHi = node.seqRange?.[1] ?? seq;
+  for (const [lo, hi] of ranges) {
+    if (seqHi >= lo && seqLo <= hi) return true;
+  }
+  return false;
+}
+
 function _refreshTaskMemoryBrowser() {
   const el = document.getElementById("bme-task-memory");
   if (!el) return;
@@ -1565,6 +1595,7 @@ function _refreshTaskMemoryBrowser() {
     .trim()
     .toLowerCase();
   const currentFilter = document.getElementById("bme-task-memory-filter")?.value || "all";
+  const currentFloorQuery = String(document.getElementById("bme-task-memory-floor")?.value || "").trim();
 
   let nodes = Array.isArray(graph.nodes)
     ? graph.nodes.filter((node) => !node?.archived)
@@ -1587,6 +1618,13 @@ function _refreshTaskMemoryBrowser() {
     });
   }
 
+  if (currentFloorQuery) {
+    const floorFilter = _parseFloorFilter(currentFloorQuery);
+    if (floorFilter) {
+      nodes = nodes.filter((node) => _matchesFloorFilter(node, floorFilter));
+    }
+  }
+
   const sorted = nodes.slice().sort((a, b) => {
     const importanceDiff = (b.importance || 5) - (a.importance || 5);
     if (importanceDiff !== 0) return importanceDiff;
@@ -1624,6 +1662,7 @@ function _refreshTaskMemoryBrowser() {
       <div class="bme-memory-list-panel">
         <div class="bme-memory-list-filters">
           <input type="text" class="bme-search-input" id="bme-task-memory-search" placeholder="搜索记忆节点..." value="${_escHtml(currentQuery)}" />
+          <input type="text" class="bme-search-input bme-floor-input" id="bme-task-memory-floor" placeholder="楼层 (如 4, 3-10)" value="${_escHtml(currentFloorQuery)}" />
           <select class="bme-filter-select" id="bme-task-memory-filter">
             <option value="all"${currentFilter === "all" ? " selected" : ""}>全部</option>
             <option value="scope:objective"${currentFilter === "scope:objective" ? " selected" : ""}>客观</option>
@@ -1648,6 +1687,7 @@ function _refreshTaskMemoryBrowser() {
   _bindTaskMemoryListClick();
 
   const searchInput = document.getElementById("bme-task-memory-search");
+  const floorInput = document.getElementById("bme-task-memory-floor");
   const filterSelect = document.getElementById("bme-task-memory-filter");
   if (searchInput) {
     let timer = null;
@@ -1655,6 +1695,10 @@ function _refreshTaskMemoryBrowser() {
       clearTimeout(timer);
       timer = setTimeout(() => _refreshTaskMemoryBrowser(), 180);
     });
+    floorInput?.addEventListener("input", () => {
+      clearTimeout(timer);
+      timer = setTimeout(() => _refreshTaskMemoryBrowser(), 180);
+    });
   }
   filterSelect?.addEventListener("change", () => _refreshTaskMemoryBrowser());
 }
@@ -3300,6 +3344,7 @@ function _refreshMemoryBrowser() {
 
   const searchInput = document.getElementById("bme-memory-search");
   const regionInput = document.getElementById("bme-memory-region-filter");
+  const floorInput = document.getElementById("bme-memory-floor-filter");
   const filterSelect = document.getElementById("bme-memory-filter");
   const listEl = document.getElementById("bme-memory-list");
   if (!listEl) return;
@@ -3307,6 +3352,7 @@ function _refreshMemoryBrowser() {
   const canRenderGraph = _canRenderGraphData(loadInfo);
   if (searchInput) searchInput.disabled = !canRenderGraph;
   if (regionInput) regionInput.disabled = !canRenderGraph;
+  if (floorInput) floorInput.disabled = !canRenderGraph;
   if (filterSelect) filterSelect.disabled = !canRenderGraph;
 
   if (!canRenderGraph && loadInfo.loadState !== "empty-confirmed") {
@@ -3347,6 +3393,14 @@ function _refreshMemoryBrowser() {
     });
   }
 
+  const floorQuery = String(floorInput?.value || "").trim();
+  if (floorQuery) {
+    const floorFilter = _parseFloorFilter(floorQuery);
+    if (floorFilter) {
+      nodes = nodes.filter((node) => _matchesFloorFilter(node, floorFilter));
+    }
+  }
+
   nodes.sort((a, b) => {
     const importanceDiff = (b.importance || 5) - (a.importance || 5);
     if (importanceDiff !== 0) return importanceDiff;
@@ -3451,6 +3505,10 @@ function _refreshMemoryBrowser() {
       clearTimeout(timer);
       timer = setTimeout(() => _refreshMemoryBrowser(), 200);
     });
+    floorInput?.addEventListener("input", () => {
+      clearTimeout(timer);
+      timer = setTimeout(() => _refreshMemoryBrowser(), 200);
+    });
     filterSelect?.addEventListener("change", () => _refreshMemoryBrowser());
     searchInput._bmeBound = true;
   }