diff --git a/index.js b/index.js
index 0d7da09..cb6a6a4 100644
--- a/index.js
+++ b/index.js
@@ -3740,6 +3740,71 @@ async function onManualExtract() {
   }
 }
 
+async function onReroll({ fromFloor } = {}) {
+  if (isExtracting) {
+    toastr.info("记忆提取正在进行中，请稍候");
+    return;
+  }
+  if (!currentGraph) {
+    toastr.info("图谱为空，无需重 Roll");
+    return;
+  }
+
+  const context = getContext();
+  const chat = context.chat;
+  if (!Array.isArray(chat) || chat.length === 0) {
+    toastr.info("当前聊天为空");
+    return;
+  }
+
+  // 确定回滚起点
+  let targetFloor = Number.isFinite(fromFloor) ? fromFloor : null;
+  if (targetFloor === null) {
+    // 默认：回滚到最新 AI 楼
+    targetFloor = getLastProcessedAssistantFloor();
+    if (targetFloor < 0) {
+      toastr.info("尚未有过提取记录，无需重 Roll");
+      return;
+    }
+  }
+
+  console.log(`[ST-BME] 重 Roll 开始，目标楼层: ${targetFloor}`);
+
+  // 1. 找到受影响的 journal 并回滚
+  const recovery = findJournalRecoveryPoint(currentGraph, targetFloor);
+  if (recovery && recovery.affectedJournals?.length > 0) {
+    rollbackAffectedJournals(currentGraph, recovery.affectedJournals);
+    console.log(
+      `[ST-BME] 已回滚 ${recovery.affectedJournals.length} 个 batch`,
+    );
+  }
+
+  // 2. 重置提取指针
+  const newFloor = targetFloor - 1;
+  currentGraph.historyState.lastProcessedAssistantFloor = newFloor;
+  currentGraph.lastProcessedSeq = newFloor;
+
+  // 3. 清理 processedMessageHashes 中 >= targetFloor 的条目
+  const hashes = currentGraph.historyState.processedMessageHashes || {};
+  for (const key of Object.keys(hashes)) {
+    if (Number(key) >= targetFloor) {
+      delete hashes[key];
+    }
+  }
+
+  // 4. 保存回滚后的状态
+  saveGraph();
+
+  toastr.info(
+    `已回滚到楼层 ${targetFloor} 之前，开始重新提取…`,
+    "ST-BME 重 Roll",
+    { timeOut: 2000 },
+  );
+
+  // 5. 触发重新提取（复用手动提取逻辑）
+  await onManualExtract();
+}
+
 async function onManualSleep() {
   if (!currentGraph) return;
   const beforeSnapshot = cloneGraphSnapshot(currentGraph);
@@ -3917,6 +3982,7 @@ async function onReembedDirect() {
         rebuildVectorIndex: () => onRebuildVectorIndex(),
         rebuildVectorRange: (range) => onRebuildVectorIndex(range),
         reembedDirect: onReembedDirect,
+        reroll: onReroll,
       },
     });
 
diff --git a/panel.html b/panel.html
index b9dedf3..0ed7cd6 100644
--- a/panel.html
+++ b/panel.html
@@ -255,6 +255,26 @@
                     <i class="fa-solid fa-moon"></i>
                     <span>执行遗忘</span>
                   </button>
+                  <button class="bme-action-btn" id="bme-act-reroll" type="button">
+                    <i class="fa-solid fa-rotate"></i>
+                    <span>重新提取</span>
+                  </button>
+                </div>
+                <div class="bme-action-group-extra">
+                  <div class="bme-config-help">
+                    重新提取：回滚指定楼层及之后的提取结果并重做。留空则只重做最新 AI 楼。
+                  </div>
+                  <div class="bme-config-row">
+                    <label for="bme-reroll-floor">起始楼层</label>
+                    <input
+                      id="bme-reroll-floor"
+                      class="bme-config-input"
+                      type="number"
+                      min="0"
+                      max="999999"
+                      placeholder="留空 = 最新 AI 楼"
+                    />
+                  </div>
                 </div>
               </div>
 
diff --git a/panel.js b/panel.js
index b2fe6da..318ee91 100644
--- a/panel.js
+++ b/panel.js
@@ -828,6 +828,52 @@ function _bindActions() {
         }
       }
     });
+
+  // 重新提取 (reroll) 绑定
+  document
+    .getElementById("bme-act-reroll")
+    ?.addEventListener("click", async () => {
+      const btn = document.getElementById("bme-act-reroll");
+      if (btn?.disabled) return;
+
+      const floorStr = document.getElementById("bme-reroll-floor")?.value;
+      const fromFloor = _parseOptionalInt(floorStr);
+      const desc = Number.isFinite(fromFloor)
+        ? `从楼层 ${fromFloor} 开始回滚并重新提取`
+        : "回滚最新 AI 楼并重新提取";
+
+      if (!confirm(`确认要重新提取吗？\n\n${desc}\n\n已提取的记忆节点将被回滚。`)) {
+        return;
+      }
+
+      if (btn) {
+        btn.disabled = true;
+        btn.style.opacity = "0.5";
+      }
+
+      try {
+        await _actionHandlers.reroll?.({
+          fromFloor: Number.isFinite(fromFloor) ? fromFloor : undefined,
+        });
+        _refreshDashboard();
+        _refreshGraph();
+        if (
+          document
+            .getElementById("bme-pane-memory")
+            ?.classList.contains("active")
+        ) {
+          _refreshMemoryBrowser();
+        }
+      } catch (error) {
+        console.error("[ST-BME] Action reroll failed:", error);
+        toastr.error(`重新提取失败: ${error?.message || error}`, "ST-BME");
+      } finally {
+        if (btn) {
+          btn.disabled = false;
+          btn.style.opacity = "";
+        }
+      }
+    });
 }
 
 function _refreshConfigTab() {