An electromechanically controlled moxa-stick knee encircling motion fuming moxibustion device comprises a transmission mechanism, a positioning mechanism, a control transmission mechanism, a moxa-stick clamping mechanism and a rack. According to the device, electromechanical integration design is adopted, a motor serves as a power source, a single chip microcomputer is adopted for controlling the motor for transmission, and the transmission mechanism and the positioning mechanism are used for enabling clamping tubes for clamping moxa sticks to achieve predetermined knee encircling rotation. The rotation period of the device is automatically controlled through machines, manual work is replaced, the fuming moxibustion effect of the moxa sticks is fully exerted, and the moxa sticks help a patient with knee arthritis to rehabilitate. The device is convenient to use, ingenious in structural design, stable in operation and capable of being operated by a user independently, comfortableness and convenience are achieved, and rehabilitation treatment can be effectively conducted on the knee arthritis.