The invention discloses mobile cold storage capable of hiding a supporting wheel. The mobile cold storage comprises a cold storage body, wherein the front surface of the cold storage body is hinged with a cold storage door through a hinge; a refrigerator and a controller are fixedly connected at the right side of the cold storage body from top to bottom in sequence; the bottom of the cold storage body is fixedly connected with a base; through holes are formed in the two sides of the bottom of the base; a motor is fixedly connected on the middle shaft on the top of an inner cavity of the base; a straight gear sleeves the rotary shaft of the motor; vertical plates are fixedly arranged on positions, which are positioned at the two sides of the motor, on the top of the base; a transverse rod is arranged between the two vertical plates; and the two ends of the transverse rod penetrate through the vertical plates and extend to the outer parts of the vertical plates. According to the mobile cold storage disclosed by the invention, rollers extend out of the inner cavity of the base, so that the cold storage body is conveniently moved; and when the mobile cold storage does not need to move, the rollers can be hidden into the inner cavity of the base, so that the bottom of the base is in direct contact with the ground, and therefore, the cold storage can be stably supported, and stability of the cold storage is strengthened.