The invention relates to an electric vehicle flat tire auxiliary walking device. The device comprises an arc-shaped concave sliding plate which can be mounted on the fender of the electric vehicle, two pulleys are arranged on the outer side of the arc concave sliding plate; the telescopic rod and the arc concave sliding plate are driven by the rotating disc on the positioning disc to position andprotect tires of the electric vehicle, the pulleys replace the tires to enable the electric vehicle to continue to run, inconvenience brought to people when the tires are flat is avoided, secondary damage to the tires is effectively avoided, and the electric vehicle tire protection device is simple in structure, safe, reliable, easy to disassemble and convenient to use.