Abstract: A rear wheel steering hand cart with an integrated brake system includes a main body (10), a push handle (20), a wheel unit (30) and a wheel seat (50) which includes an upper wheel seat (53), a lower wheel seat (51) and a rotary shaft (52); a wheel stop device (40) is disposed between a real wheel (32) and the wheel seat (50); a clutch device (60) is arranged between the upper wheel seat (53) and the lower wheel seat (51), a control rod (71) of the clutch device (60) is connected to the wheel stop device (40), and the clutch device (60) includes the first clutch element (61) and the second clutch element (63).