The invention relates to an electronic shift device, comprising a
servo motor, a locomotory apparatus and a shift straining ring, wherein the locomotory apparatus comprises a main locomotory apparatus and an assistant locomotory apparatus, and the
servo motor is fixedly installed on the main locomotory apparatus; the main locomotory apparatus comprises a guide holder, a connecting
flange, a
ball screw, a ball nut and a
propeller shaft, wherein the connecting
flange is fixedly installed on one end of the guide holder to be connected with the
servo motor; the shift
staining ring is positioned on the other end of the guide holder; the
propeller shaft is positioned in the guide holder, one end of the
propeller shaft is fixed with the shift straining ring, and a cavity is formed in the other end of the propeller shaft; the
ball screw and the ball nut are fixed in the cavity; and the
ball screw is connected with the connecting
flange by a screw shaft on the end of the ball screw. The assistant locomotory apparatus comprises a spring shaft, a transition shaft, a linear bearing and an assistant straining ring, wherein one end of the spring shaft is fixed with the shift straining ring, the other end of the spring shaft is fixedly arranged on the assistant straining ring, and the transition shaft is installed in the guide holder by the linear bearing. The invention is favorable for ensuring product quality and maintenance, prevents dust from entering, has low cost, and simple and compact structure and improves the service life of products.