diff --git a/prisma/migrations/20260427100000_add_phone_birthday/migration.sql b/prisma/migrations/20260427100000_add_phone_birthday/migration.sql
new file mode 100644
index 0000000..f654216
--- /dev/null
+++ b/prisma/migrations/20260427100000_add_phone_birthday/migration.sql
@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "User" ADD COLUMN "phone" TEXT;
+ALTER TABLE "User" ADD COLUMN "birthday" TIMESTAMP(3);
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 022c129..957f854 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -18,6 +18,8 @@ model User {
   emailVerified Boolean   @default(false)
   image         String?
   role          String    @default("student") // student | curator | admin
+  phone         String?
+  birthday      DateTime?
   banned        Boolean?  @default(false)
   banReason     String?
   banExpires    DateTime?
diff --git a/src/app/admin/users/[userId]/actions.ts b/src/app/admin/users/[userId]/actions.ts
index b96a0fa..2aaf2a2 100644
--- a/src/app/admin/users/[userId]/actions.ts
+++ b/src/app/admin/users/[userId]/actions.ts
@@ -41,6 +41,21 @@ export async function bulkGrantAccess(
   revalidatePath(`/admin/users/${userId}`);
 }
 
+export async function updateUserContact(
+  userId: string,
+  data: { phone: string; birthday: string }
+) {
+  await requireAdmin();
+  await prisma.user.update({
+    where: { id: userId },
+    data: {
+      phone: data.phone.trim() || null,
+      birthday: data.birthday ? new Date(data.birthday) : null,
+    },
+  });
+  revalidatePath(`/admin/users/${userId}`);
+}
+
 export async function revokeUserAccess(userId: string, courseId: string) {
   const session = await requireAdmin();
   await prisma.courseEnrollment.delete({
diff --git a/src/app/admin/users/[userId]/page.tsx b/src/app/admin/users/[userId]/page.tsx
index 06b7062..300b87b 100644
--- a/src/app/admin/users/[userId]/page.tsx
+++ b/src/app/admin/users/[userId]/page.tsx
@@ -2,6 +2,7 @@ import { prisma } from "@/lib/prisma";
 import { notFound } from "next/navigation";
 import Link from "next/link";
 import { UserEnrollmentManager } from "@/components/admin/user-enrollment-manager";
+import { UserContactEditor } from "@/components/admin/user-contact-editor";
 
 interface Props {
   params: Promise<{ userId: string }>;
@@ -47,7 +48,7 @@ export default async function UserPage({ params }: Props) {
       </nav>
 
       {/* User info */}
-      <section className="card-aubade p-6 mb-6">
+      <section className="card-aubade p-6 mb-6 space-y-4">
         <div className="flex items-start justify-between">
           <div>
             <h1 className="text-xl font-bold">{user.name}</h1>
@@ -60,6 +61,13 @@ export default async function UserPage({ params }: Props) {
             </span>
           </div>
         </div>
+        <div style={{ borderTop: "2px solid var(--border)", paddingTop: "1rem" }}>
+          <UserContactEditor
+            userId={userId}
+            phone={user.phone ?? null}
+            birthday={user.birthday ?? null}
+          />
+        </div>
       </section>
 
       {/* Enrollments + bulk grant */}
diff --git a/src/components/admin/user-contact-editor.tsx b/src/components/admin/user-contact-editor.tsx
new file mode 100644
index 0000000..e6f44e1
--- /dev/null
+++ b/src/components/admin/user-contact-editor.tsx
@@ -0,0 +1,120 @@
+"use client";
+
+import { useState, useTransition } from "react";
+import { updateUserContact } from "@/app/admin/users/[userId]/actions";
+
+const inputStyle = {
+  border: "2px solid var(--border)",
+  background: "var(--background)",
+  outline: "none",
+  width: "100%",
+  padding: "0.4rem 0.6rem",
+  fontSize: "0.875rem",
+  fontFamily: "inherit",
+} as React.CSSProperties;
+
+interface Props {
+  userId: string;
+  phone: string | null;
+  birthday: Date | null;
+}
+
+export function UserContactEditor({ userId, phone, birthday }: Props) {
+  const [editing, setEditing] = useState(false);
+  const [phoneVal, setPhoneVal] = useState(phone ?? "");
+  const [birthdayVal, setBirthdayVal] = useState(
+    birthday ? birthday.toISOString().slice(0, 10) : ""
+  );
+  const [pending, startTransition] = useTransition();
+
+  function handleSave() {
+    startTransition(async () => {
+      await updateUserContact(userId, { phone: phoneVal, birthday: birthdayVal });
+      setEditing(false);
+    });
+  }
+
+  if (!editing) {
+    return (
+      <div className="flex items-start gap-6 flex-wrap">
+        <div className="space-y-0.5">
+          <p className="text-xs uppercase tracking-widest font-bold" style={{ color: "var(--muted-foreground)" }}>
+            Телефон
+          </p>
+          <p className="text-sm">{phone || "—"}</p>
+        </div>
+        <div className="space-y-0.5">
+          <p className="text-xs uppercase tracking-widest font-bold" style={{ color: "var(--muted-foreground)" }}>
+            День рождения
+          </p>
+          <p className="text-sm">
+            {birthday
+              ? new Date(birthday).toLocaleDateString("ru-RU", { day: "numeric", month: "long", year: "numeric" })
+              : "—"}
+          </p>
+        </div>
+        <button
+          type="button"
+          onClick={() => setEditing(true)}
+          className="text-xs underline self-end pb-0.5"
+          style={{ color: "var(--muted-foreground)" }}
+        >
+          Изменить
+        </button>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-3">
+      <div className="grid grid-cols-2 gap-3">
+        <div className="space-y-1">
+          <label className="text-xs uppercase tracking-widest font-bold" style={{ color: "var(--muted-foreground)" }}>
+            Телефон
+          </label>
+          <input
+            type="tel"
+            value={phoneVal}
+            onChange={(e) => setPhoneVal(e.target.value)}
+            placeholder="+7 900 000-00-00"
+            style={inputStyle}
+            onFocus={(e) => (e.currentTarget.style.borderColor = "var(--foreground)")}
+            onBlur={(e) => (e.currentTarget.style.borderColor = "var(--border)")}
+          />
+        </div>
+        <div className="space-y-1">
+          <label className="text-xs uppercase tracking-widest font-bold" style={{ color: "var(--muted-foreground)" }}>
+            День рождения
+          </label>
+          <input
+            type="date"
+            value={birthdayVal}
+            onChange={(e) => setBirthdayVal(e.target.value)}
+            style={inputStyle}
+            onFocus={(e) => (e.currentTarget.style.borderColor = "var(--foreground)")}
+            onBlur={(e) => (e.currentTarget.style.borderColor = "var(--border)")}
+          />
+        </div>
+      </div>
+      <div className="flex gap-2">
+        <button
+          type="button"
+          onClick={handleSave}
+          disabled={pending}
+          className="btn-aubade btn-aubade-accent px-4 py-1.5 text-xs"
+          style={{ opacity: pending ? 0.6 : 1 }}
+        >
+          {pending ? "Сохранение..." : "Сохранить"}
+        </button>
+        <button
+          type="button"
+          onClick={() => setEditing(false)}
+          className="text-xs underline"
+          style={{ color: "var(--muted-foreground)" }}
+        >
+          Отмена
+        </button>
+      </div>
+    </div>
+  );
+}