Automatic stand aid

The invention discloses an automatic stand aid which comprises a framework, a supporting rack, a pedal plate, a supporting rack driving mechanism and a pedal plate driving mechanism. The supporting rack comprises a supporting rack body and handrails for supporting hands and/or armpits of a user; and the lower end of the supporting rack body is hinged with a seat, the front of the seat is hinged with chair legs extending along a vertical direction, and the lower ends of the chair legs are fixed with the pedal plate. The supporting rack and the pedal plate respectively support the lower limbs and the upper limbs of the user, drive the upper limbs of the user to move vertically and drive the lower limbs of the user to move horizontally, and conform to natural habitual actions of the user so as to assist the user to stand up or sit down.