diff --git a/apps/web/app/components/organize-wizard/model.test.ts b/apps/web/app/components/organize-wizard/model.test.ts
index 5e8d3053..f79e0344 100644
--- a/apps/web/app/components/organize-wizard/model.test.ts
+++ b/apps/web/app/components/organize-wizard/model.test.ts
@@ -20,6 +20,7 @@ import {
   rowProblem,
   rowsFromIdentify,
   setRowEntity,
+  structureEntities,
   type WizardEntity,
   type WizardRow,
   wizardStats,
@@ -489,3 +490,48 @@ describe("季集只在用户改过时发送(集数映射交给服务端)", () =>
     expect(merged[0]?.season).toBe("3");
   });
 });
+
+describe("季集结构", () => {
+  const rowsOf = () => {
+    const rows = rowsFromIdentify([item("a.mkv"), item("b.mkv"), item("c.mkv"), item("d.mkv")], new Set());
+    return [
+      rows[0] as WizardRow,
+      { ...(rows[1] as WizardRow), entity: series },
+      { ...(rows[2] as WizardRow), entity: tmdbMovie },
+      { ...(rows[3] as WizardRow), entity: { ...series, id: "e5" }, excluded: "manual" as const },
+    ];
+  };
+
+  it("缺省跟随作品:不发 episodeStructures;只列本次涉及、未排除的本地剧集", () => {
+    const rows = rowsOf();
+    expect(defaultOptions().episodeStructures).toEqual({});
+    const body = organizeRequest(rows, defaultOptions(), { dryRun: true, idempotencyKey: "k-123456" });
+    expect(body.episodeStructures).toBeUndefined();
+    expect(structureEntities(rows).map((e) => e.id)).toEqual(["e1", "e9"]);
+  });
+
+  it("临时选剧集组 / 默认季:按作品发 groupId,不带 applyToEntity;不在本次范围的作品不发", () => {
+    const options = defaultOptions({
+      episodeStructures: {
+        e1: { groupId: "grp-production", apply: false },
+        e9: { groupId: null, apply: false },
+        e5: { groupId: "grp-x", apply: true },
+      },
+    });
+    const body = organizeRequest(rowsOf(), options, { dryRun: true, idempotencyKey: "k-123456" });
+    expect(body.episodeStructures).toEqual([
+      { mediaEntityId: "e1", groupId: "grp-production" },
+      { mediaEntityId: "e9", groupId: null },
+    ]);
+  });
+
+  it("勾「同时设为作品的季集结构」:带 applyToEntity,预览与执行同一请求体", () => {
+    const options = defaultOptions({ episodeStructures: { e1: { groupId: "grp-production", apply: true } } });
+    const preview = organizeRequest(rowsOf(), options, { dryRun: true, idempotencyKey: "preview" });
+    const queue = organizeRequest(rowsOf(), options, { dryRun: false, idempotencyKey: "q", planIds: ["p"] });
+    expect(preview.episodeStructures).toEqual([
+      { mediaEntityId: "e1", groupId: "grp-production", applyToEntity: true },
+    ]);
+    expect(queue.episodeStructures).toEqual(preview.episodeStructures);
+  });
+});
diff --git a/apps/web/app/components/organize-wizard/model.ts b/apps/web/app/components/organize-wizard/model.ts
index 07b29b5e..4e5ebca5 100644
--- a/apps/web/app/components/organize-wizard/model.ts
+++ b/apps/web/app/components/organize-wizard/model.ts
@@ -260,8 +260,15 @@ export function groupRows(rows: WizardRow[]): { group: string; dir: string; rows
 
 export type WizardTarget = { mode: "auto" } | { mode: "root"; rootId: string } | { mode: "dir"; ref: FileRef };
 
+/**
+ * 整理时指定的季集结构(按作品;没有条目 = 跟随作品)。groupId null = TMDB 默认季;
+ * apply = 同时设为作品的季集结构(执行时先切换作品)
+ */
+export type StructureChoice = { groupId: string | null; apply: boolean };
+
 export type WizardOptions = {
   action: "copy" | "move" | "in_place";
+  episodeStructures: Record<string, StructureChoice>;
   target: WizardTarget;
   onExisting: FilesOnExisting;
   naming: "template" | "keep";
@@ -276,6 +283,7 @@ export const DEFAULT_MIN_SIZE = 50 * MIB;
 
 export const defaultOptions = (o: Partial<WizardOptions> = {}): WizardOptions => ({
   action: "copy",
+  episodeStructures: {},
   target: { mode: "auto" },
   onExisting: "conflict",
   naming: "template",
@@ -308,6 +316,26 @@ export function organizeItems(rows: WizardRow[], o: WizardOptions): FilesOrganiz
     });
 }
 
+/** 本次涉及的本地剧集作品(可指定季集结构):去重,保持首次出现顺序 */
+export function structureEntities(rows: WizardRow[]): WizardEntity[] {
+  const out = new Map<string, WizardEntity>();
+  for (const r of rows)
+    if (!r.excluded && r.entity?.id && !isMovieKind(r.entity.kind) && !out.has(r.entity.id))
+      out.set(r.entity.id, r.entity);
+  return [...out.values()];
+}
+
+/** 季集结构的请求体:只发本次涉及的本地剧集作品;都跟随作品时不发 */
+export function structureRequest(rows: WizardRow[], o: WizardOptions): FilesOrganizeRequest["episodeStructures"] {
+  const list = structureEntities(rows)
+    .filter((e) => o.episodeStructures[e.id!])
+    .map((e) => {
+      const c = o.episodeStructures[e.id!]!;
+      return { mediaEntityId: e.id!, groupId: c.groupId, ...(c.apply ? { applyToEntity: true } : {}) };
+    });
+  return list.length ? list : undefined;
+}
+
 /** dryRun 与执行必须同一请求体(服务端按请求指纹比对计划),只差 dryRun/planIds/幂等键 */
 export function organizeRequest(
   rows: WizardRow[],
@@ -329,6 +357,7 @@ export function organizeRequest(
     refreshMetadata: o.refreshMetadata,
     scrapeAfterImport: o.scrapeAfterImport,
     skipSuccessfulRecords: o.skipSuccessfulRecords,
+    episodeStructures: structureRequest(rows, o),
   };
 }
 
diff --git a/apps/web/app/components/organize-wizard/organize-wizard.tsx b/apps/web/app/components/organize-wizard/organize-wizard.tsx
index 51a7c2cc..a70dbbcf 100644
--- a/apps/web/app/components/organize-wizard/organize-wizard.tsx
+++ b/apps/web/app/components/organize-wizard/organize-wizard.tsx
@@ -42,6 +42,7 @@ import {
   previewStats,
   rowProblem,
   rowsFromIdentify,
+  structureEntities,
   type WizardEntity,
   type WizardOptions,
   type WizardRow,
@@ -49,6 +50,7 @@ import {
 } from "./model.ts";
 import { type OrganizeSource, useResolvedSource } from "./source.ts";
 import { PreviewList, PreviewStatsBar } from "./step-preview.tsx";
+import { StructurePicker } from "./structure-picker.tsx";
 
 export type { OrganizeSource } from "./source.ts";
 
@@ -218,6 +220,7 @@ export function OrganizeWizard({ source, onClose }: { source: OrganizeSource; on
     [identified, manual, season, options.skipSuccessfulRecords],
   );
   const active = effectiveRows.filter((r) => !r.excluded);
+  const showEntities = structureEntities(effectiveRows);
   const stats = wizardStats(effectiveRows);
   const hnrCount = active.filter((r) => r.hnrBlocked).length;
   const successfulCount = rows.filter((r) => (r.item.records?.successfulCount ?? 0) > 0).length;
@@ -689,6 +692,22 @@ export function OrganizeWizard({ source, onClose }: { source: OrganizeSource; on
                     />
                   </div>
                 ) : null}
+                {showEntities.slice(0, 5).map((e) => (
+                  <StructurePicker
+                    key={e.id}
+                    entity={e}
+                    showTitle={showEntities.length > 1}
+                    value={options.episodeStructures[e.id!]}
+                    onChange={(v) =>
+                      setOptions((o) => {
+                        const next = { ...o.episodeStructures };
+                        if (v) next[e.id!] = v;
+                        else delete next[e.id!];
+                        return { ...o, episodeStructures: next };
+                      })
+                    }
+                  />
+                ))}
                 <div className="flex items-center justify-between gap-3 rounded-xl border border-border px-3 py-2">
                   <span className="text-caption">
                     整理后刮削
diff --git a/apps/web/app/components/organize-wizard/step-preview.tsx b/apps/web/app/components/organize-wizard/step-preview.tsx
index 0ec681c4..303dd6b7 100644
--- a/apps/web/app/components/organize-wizard/step-preview.tsx
+++ b/apps/web/app/components/organize-wizard/step-preview.tsx
@@ -191,6 +191,15 @@ export function PreviewGroupCard({
           {g.files.length} 个文件 · {formatBytes(size, 1)}
           {g.action ? ` · ${g.action === "move" ? "移动" : "复制"}` : ""}
           {g.naming ? ` · 命名：${TEMPLATE_SOURCE[g.naming.templateSource] ?? g.naming.templateSource}` : ""}
+          {g.episodeStructure
+            ? ` · 季集结构：${g.episodeStructure.name}${
+                g.episodeStructure.appliedToEntity
+                  ? "（同时设为作品结构）"
+                  : g.episodeStructure.temporary
+                    ? "（仅本次）"
+                    : ""
+              }`
+            : ""}
         </span>
         {result && g.recordId ? (
           <Link className="ml-auto text-meta underline underline-offset-2" to={`/console/organize/${g.recordId}`}>
diff --git a/apps/web/app/components/organize-wizard/structure-picker.tsx b/apps/web/app/components/organize-wizard/structure-picker.tsx
new file mode 100644
index 00000000..271d9103
--- /dev/null
+++ b/apps/web/app/components/organize-wizard/structure-picker.tsx
@@ -0,0 +1,70 @@
+import { useEpisodeGroups } from "~/api/episode-mapping.ts";
+import { Switch } from "~/components/ui/switch.tsx";
+import { FormSelect } from "./form-select.tsx";
+import { entityLabel, type StructureChoice, type WizardEntity } from "./model.ts";
+
+const FOLLOW = "follow";
+const DEFAULT = "default";
+
+/**
+ * 整理时指定季集结构(docs/runbook/organize.md「整理时指定剧集组」):缺省跟随作品,可临时选 TMDB 默认季或作品的其它剧集组;
+ * 勾「同时设为作品的季集结构」时执行前先改作品设置。作品没有剧集组可选时不显示。
+ */
+export function StructurePicker({
+  entity,
+  value,
+  onChange,
+  showTitle,
+}: {
+  entity: WizardEntity;
+  value: StructureChoice | undefined;
+  onChange: (v: StructureChoice | undefined) => void;
+  /** 本次有多部剧集时在标签里带作品名 */
+  showTitle: boolean;
+}) {
+  const q = useEpisodeGroups(entity.id ?? undefined);
+  const list = q.data;
+  if (!list?.applicable || (!list.groups.length && !list.current)) return null;
+  const current = list.current;
+  const choices = [
+    { value: FOLLOW, label: `跟随作品（当前：${current?.name ?? "TMDB 默认季"}）` },
+    ...(current ? [{ value: DEFAULT, label: "TMDB 默认季" }] : []),
+    ...list.groups
+      .filter((g) => g.id !== current?.groupId)
+      .map((g) => ({
+        value: g.id,
+        label: `${g.name}${g.typeLabel ? ` · ${g.typeLabel}` : ""} · ${g.groupCount} 季 ${g.episodeCount} 集`,
+      })),
+  ];
+  const selected = value ? (value.groupId ?? DEFAULT) : FOLLOW;
+  return (
+    <div className="space-y-2">
+      <FormSelect
+        label={showTitle ? `季集结构 · ${entityLabel(entity)}` : "季集结构"}
+        value={selected}
+        onChange={(v) =>
+          onChange(v === FOLLOW ? undefined : { groupId: v === DEFAULT ? null : v, apply: value?.apply ?? false })
+        }
+        choices={choices}
+      />
+      {value ? (
+        <div className="flex items-center justify-between gap-3 rounded-xl border border-border px-3 py-2">
+          <span className="text-caption">
+            同时设为作品的季集结构
+            <span className="block text-meta text-muted-foreground">
+              {value.apply
+                ? "执行时先改作品设置，已有集按 TMDB 原季集迁移，再按新结构整理"
+                : "只这次按所选结构换算季集和命名，作品设置不变"}
+            </span>
+          </span>
+          <Switch
+            checked={value.apply}
+            onCheckedChange={(apply) => onChange({ ...value, apply })}
+            aria-label="同时设为作品的季集结构"
+          />
+        </div>
+      ) : null}
+      {list.error ? <p className="text-meta text-warning">剧集组列表暂时取不到，只能跟随作品。</p> : null}
+    </div>
+  );
+}