Ultrasonic knife assembly

The utility model discloses an ultrasonic knife assembly which comprises a puncture outfit body, a first elastic piece is arranged on the puncture outfit body, a first connector is connected to the first elastic piece, a connecting cable is connected to the first connector, and a second connector is connected to the second elastic piece. One end of the connecting cable is electrically connected tothe first connector, and the other end of the connecting cable is used for being electrically connected to ultrasonic knife control equipment; the ultrasonic scalpel handheld end is provided with a first socket, the first socket is electrically connected with an internal circuit of the ultrasonic scalpel handheld end, and the first socket is detachably connected with the first connector; the first socket is used for being connected with the first connector to enable the ultrasonic knife control device to be electrically connected with the ultrasonic knife handheld end. In the operation process of a doctor, the cable