The invention provides an electric translation cold storage door comprising a transmission system, a transitional door sliding unit and a door body which is arranged on the translation door slideway; the transmission system comprises a guideway, a stroke control device and an electric control system; the guideway is provided with a bearing seat and a bearing; the bearing is provided with a ball screw which is provided with a ball nut; the ball nut is connected with a installation frame in the translation door slideway; one end of the ball screw is connected with a driving mechanism; the stroke control device is provided with a trimmer; the driving mechanism is provided with a frequency converter; and the proportion range of the lead and the diameter of the ball screw is 0.5-5. The electric translation cold storage door can improve the stability of the door body when the cold storage door is being opened and closed, control the movement stroke of the cold storage door and improve the service life of the cold storage door; the transmission system of the cold storage door generates no self-locking, thus ensuring the safety usage; furthermore, the movement speed of the door body of the cold storage door can be controlled, and the heat-preservation and energy-saving effect of the cold storage can be improved.