diff --git a/src/pages/agent-office/hooks/useActivityFeed.js b/src/pages/agent-office/hooks/useActivityFeed.js
new file mode 100644
index 0000000..893998e
--- /dev/null
+++ b/src/pages/agent-office/hooks/useActivityFeed.js
@@ -0,0 +1,57 @@
+// src/pages/agent-office/hooks/useActivityFeed.js
+import { useState, useEffect, useCallback, useRef } from 'react';
+import { agentActivity } from '../../../api';
+
+const PAGE_SIZE = 30;
+
+export function useActivityFeed(filters, refreshTrigger = 0) {
+  const [items, setItems] = useState([]);
+  const [total, setTotal] = useState(0);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState(null);
+
+  const offsetRef = useRef(0);
+  const loadingRef = useRef(false);
+  const filtersRef = useRef(filters);
+  filtersRef.current = filters;
+
+  const filterKey = JSON.stringify(filters);
+
+  const fetchPage = useCallback(async (offset, replace) => {
+    if (loadingRef.current) return;
+    loadingRef.current = true;
+    setLoading(true);
+    setError(null);
+    try {
+      const data = await agentActivity({ ...filtersRef.current, limit: PAGE_SIZE, offset });
+      const newItems = Array.isArray(data?.items) ? data.items : [];
+      setTotal(data?.total || 0);
+      setItems(prev => (replace ? newItems : [...prev, ...newItems]));
+      offsetRef.current = offset + newItems.length;
+    } catch (e) {
+      setError(e.message || '불러오기 실패');
+    } finally {
+      loadingRef.current = false;
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    offsetRef.current = 0;
+    fetchPage(0, true);
+  }, [filterKey, refreshTrigger, fetchPage]);
+
+  const loadMore = useCallback(() => {
+    if (loadingRef.current) return;
+    if (offsetRef.current >= total) return;
+    fetchPage(offsetRef.current, false);
+  }, [fetchPage, total]);
+
+  const retry = useCallback(() => {
+    offsetRef.current = 0;
+    fetchPage(0, true);
+  }, [fetchPage]);
+
+  const hasMore = items.length < total;
+  return { items, total, loading, error, hasMore, loadMore, retry };
+}
diff --git a/src/pages/agent-office/hooks/useActivityFeed.test.js b/src/pages/agent-office/hooks/useActivityFeed.test.js
new file mode 100644
index 0000000..4a1f52a
--- /dev/null
+++ b/src/pages/agent-office/hooks/useActivityFeed.test.js
@@ -0,0 +1,59 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { renderHook, act, waitFor } from '@testing-library/react';
+import { useActivityFeed } from './useActivityFeed.js';
+
+const mockAgentActivity = vi.fn();
+vi.mock('../../../api', () => ({
+  agentActivity: (...args) => mockAgentActivity(...args),
+}));
+
+beforeEach(() => mockAgentActivity.mockReset());
+
+const item = (over = {}) => ({ type: 'task', task_id: 'a', agent_id: 'stock', created_at: 't1', ...over });
+
+describe('useActivityFeed', () => {
+  it('마운트 시 offset=0으로 첫 페이지를 불러온다', async () => {
+    mockAgentActivity.mockResolvedValueOnce({ items: [item()], total: 1 });
+    const { result } = renderHook(() => useActivityFeed({ days: 7 }, 0));
+    await waitFor(() => expect(result.current.items).toHaveLength(1));
+    expect(mockAgentActivity).toHaveBeenCalledWith(expect.objectContaining({ days: 7, offset: 0 }));
+    expect(result.current.total).toBe(1);
+  });
+
+  it('loadMore는 다음 offset으로 append한다', async () => {
+    mockAgentActivity
+      .mockResolvedValueOnce({ items: [item({ task_id: 'a' })], total: 2 })
+      .mockResolvedValueOnce({ items: [item({ task_id: 'b', agent_id: 'lotto', created_at: 't2' })], total: 2 });
+    const { result } = renderHook(() => useActivityFeed({ days: 7 }, 0));
+    await waitFor(() => expect(result.current.items).toHaveLength(1));
+    await act(async () => { result.current.loadMore(); });
+    await waitFor(() => expect(result.current.items).toHaveLength(2));
+    expect(mockAgentActivity).toHaveBeenLastCalledWith(expect.objectContaining({ offset: 1 }));
+  });
+
+  it('필터 변경 시 offset 리셋 + items 교체', async () => {
+    mockAgentActivity
+      .mockResolvedValueOnce({ items: [item({ task_id: 'a' })], total: 1 })
+      .mockResolvedValueOnce({ items: [item({ type: 'log', task_id: 'c', agent_id: 'insta', created_at: 't3', level: 'info' })], total: 1 });
+    const { result, rerender } = renderHook(({ f }) => useActivityFeed(f, 0), { initialProps: { f: { days: 7 } } });
+    await waitFor(() => expect(result.current.items[0].task_id).toBe('a'));
+    rerender({ f: { days: 7, agent_id: 'insta' } });
+    await waitFor(() => expect(result.current.items[0].task_id).toBe('c'));
+    expect(result.current.items).toHaveLength(1);
+  });
+
+  it('refreshTrigger 변경 시 첫 페이지 재조회', async () => {
+    mockAgentActivity.mockResolvedValue({ items: [item()], total: 1 });
+    const { rerender } = renderHook(({ rt }) => useActivityFeed({ days: 7 }, rt), { initialProps: { rt: 0 } });
+    await waitFor(() => expect(mockAgentActivity).toHaveBeenCalledTimes(1));
+    rerender({ rt: 1 });
+    await waitFor(() => expect(mockAgentActivity).toHaveBeenCalledTimes(2));
+  });
+
+  it('hasMore는 items.length < total', async () => {
+    mockAgentActivity.mockResolvedValueOnce({ items: [item()], total: 5 });
+    const { result } = renderHook(() => useActivityFeed({ days: 7 }, 0));
+    await waitFor(() => expect(result.current.items).toHaveLength(1));
+    expect(result.current.hasMore).toBe(true);
+  });
+});