diff --git a/src/app/parent/overview-tab.tsx b/src/app/parent/overview-tab.tsx
index 675e135..40c7410 100644
--- a/src/app/parent/overview-tab.tsx
+++ b/src/app/parent/overview-tab.tsx
@@ -1,6 +1,7 @@
 "use client";
 
 import { useState } from "react";
+import Link from "next/link";
 import { cn } from "@/lib/utils";
 import { addDays, dowOf, todayStr } from "@/lib/dates";
 import { subjectMeta } from "@/lib/subjects";
@@ -44,10 +45,13 @@ export function OverviewTab({ data }: { data: OverviewData }) {
             {kid.grammar.done}/{kid.grammar.total}
           </p>
         </div>
-        <div className="rounded-xl border border-slate-100 bg-white p-3 text-center shadow-soft">
+        <Link
+          href={`/parent/wrongbook?kid=${kid.id}`}
+          className="rounded-xl border border-slate-100 bg-white p-3 text-center shadow-soft transition-all duration-200 hover:-translate-y-0.5 hover:border-rose-200"
+        >
           <p className="text-xs text-muted-foreground">待掌握错题</p>
           <p className="text-lg font-extrabold text-rose-600">{kid.wrongOpen}</p>
-        </div>
+        </Link>
         <div className="rounded-xl border border-slate-100 bg-white p-3 text-center shadow-soft">
           <p className="text-xs text-muted-foreground">最近周测</p>
           <p className="text-lg font-extrabold text-violet-600">
diff --git a/src/app/parent/wrongbook/actions.ts b/src/app/parent/wrongbook/actions.ts
new file mode 100644
index 0000000..fbc2760
--- /dev/null
+++ b/src/app/parent/wrongbook/actions.ts
@@ -0,0 +1,23 @@
+"use server";
+
+import { eq } from "drizzle-orm";
+import { revalidatePath } from "next/cache";
+import { db } from "@/db";
+import { users, wrongBook } from "@/db/schema";
+import { getSessionUser } from "@/lib/auth";
+import { setMastered } from "@/lib/wrongbook";
+
+// xuchao: 家长标记某错题已掌握/未掌握(仅限本家庭孩子,防越权)
+export async function markMastered(id: number, mastered: boolean): Promise<void> {
+  const parent = await getSessionUser();
+  if (!parent || parent.role !== "parent") return;
+
+  const [row] = await db.select().from(wrongBook).where(eq(wrongBook.id, id)).limit(1);
+  if (!row) return;
+  const [child] = await db.select().from(users).where(eq(users.id, row.childUserId)).limit(1);
+  if (!child || child.role !== "child" || child.familyId !== parent.familyId) return;
+
+  await setMastered(id, row.childUserId, mastered);
+  revalidatePath("/parent");
+  revalidatePath("/parent/wrongbook");
+}
\ No newline at end of file
diff --git a/src/app/parent/wrongbook/page.tsx b/src/app/parent/wrongbook/page.tsx
new file mode 100644
index 0000000..58815a9
--- /dev/null
+++ b/src/app/parent/wrongbook/page.tsx
@@ -0,0 +1,80 @@
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { and, eq } from "drizzle-orm";
+import { BackgroundBlobs } from "@/components/background-blobs";
+import { db } from "@/db";
+import { users } from "@/db/schema";
+import { getSessionUser } from "@/lib/auth";
+import { listWrong } from "@/lib/wrongbook";
+import { photoViewUrl } from "@/lib/oss";
+import type { QuizQ } from "@/lib/quiz-parse";
+import { WrongRow } from "@/app/wrongbook/wrong-row";
+import { markMastered } from "./actions";
+
+// xuchao: 家长查看某孩子待掌握错题(?kid=),家庭归属校验防越权
+export default async function ParentWrongBookPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ kid?: string }>;
+}) {
+  const parent = await getSessionUser();
+  if (!parent) redirect("/login");
+  if (parent.role !== "parent") redirect("/kid");
+
+  const kidId = Number((await searchParams).kid);
+  if (!Number.isInteger(kidId)) redirect("/parent");
+  const [kid] = await db
+    .select({ id: users.id, name: users.displayName })
+    .from(users)
+    .where(and(eq(users.id, kidId), eq(users.role, "child"), eq(users.familyId, parent.familyId)))
+    .limit(1);
+  if (!kid) redirect("/parent");
+
+  const rows = (await listWrong(kid.id)).filter((r) => !r.mastered);
+
+  return (
+    <main className="relative mx-auto max-w-2xl space-y-5 p-4 pb-12">
+      <BackgroundBlobs />
+      <header className="flex items-center justify-between">
+        <Link href="/parent" className="text-sm font-medium text-indigo-600">
+          ← 返回家长中心
+        </Link>
+        <h1 className="text-xl font-extrabold text-slate-900">待掌握错题</h1>
+        <span className="text-xs text-muted-foreground">{kid.name} · {rows.length} 题</span>
+      </header>
+
+      {rows.length === 0 ? (
+        <div className="rounded-2xl border border-slate-100 bg-white p-8 text-center shadow-soft">
+          <p className="text-3xl">🎉</p>
+          <p className="mt-2 font-bold text-slate-900">没有待掌握错题!</p>
+        </div>
+      ) : (
+        <div className="space-y-3">
+          {rows.map((r) => {
+            let q: QuizQ;
+            try {
+              q = JSON.parse(r.question) as QuizQ;
+            } catch {
+              return null;
+            }
+            // xuchao: 解答题展示当时的作答照片(OSS 签名地址;开发环境为本地回退)
+            const photoUrl = q.type === "solve" && q.solveSnap?.ossKey ? photoViewUrl(q.solveSnap.ossKey) : "";
+            return (
+              <WrongRow
+                key={r.id}
+                id={r.id}
+                sourceTitle={r.sourceTitle}
+                q={q}
+                userAnswer={r.userAnswer}
+                correctAnswer={r.correctAnswer}
+                mastered={r.mastered}
+                photoUrl={photoUrl}
+                markAction={markMastered}
+              />
+            );
+          })}
+        </div>
+      )}
+    </main>
+  );
+}
\ No newline at end of file
diff --git a/src/app/wrongbook/wrong-row.tsx b/src/app/wrongbook/wrong-row.tsx
index 2e341f8..c7f92a9 100644
--- a/src/app/wrongbook/wrong-row.tsx
+++ b/src/app/wrongbook/wrong-row.tsx
@@ -7,6 +7,7 @@ import { cn } from "@/lib/utils";
 import type { QuizQ } from "@/lib/quiz-parse";
 import { toggleMastered } from "./actions";
 
+// xuchao: markAction 供家长版错题页注入专属标记动作,缺省走孩子端 toggleMastered
 export function WrongRow({
   id,
   sourceTitle,
@@ -15,6 +16,7 @@ export function WrongRow({
   correctAnswer,
   mastered,
   photoUrl = "",
+  markAction,
 }: {
   id: number;
   sourceTitle: string | null;
@@ -23,6 +25,7 @@ export function WrongRow({
   correctAnswer: string | null;
   mastered: boolean;
   photoUrl?: string;
+  markAction?: (id: number, mastered: boolean) => Promise<void>;
 }) {
   const [pending, startTransition] = useTransition();
   const isSolve = q.type === "solve";
@@ -81,7 +84,7 @@ export function WrongRow({
           variant={mastered ? "outline" : "secondary"}
           size="sm"
           disabled={pending}
-          onClick={() => startTransition(() => toggleMastered(id, !mastered))}
+          onClick={() => startTransition(() => (markAction ?? toggleMastered)(id, !mastered))}
         >
           {mastered ? (
             <>