The invention relates to a cordless vacuum haircut kit. The cordless vacuum haircut kit includes a front upper housing, a back upper housing, a lower housing and a first motor. The cordless vacuum haircut kit is provided with an air flow chamber, a hair suction port, an air outlet and a hair storage chamber. The hair storage chamber is provided with a window, a wind impeller driven by a second motor and an exhaust outlet. The invention is integral, small in volume, and convenient in operation and has function of broken hair suction.