The invention discloses an automatic nursing device for the patients of the breast surgery department. The automatic nursing device comprises a left cup and is characterized in that the outer side ofthe left cup is provided with a sealing ring, a nursing device body is arranged in the sealing ring, the nursing device body comprises air holes, a sterilizing layer, a heating layer, heating wires, amedicine device, a gauze layer, an annular sealing pad, a medicine inlet and a medicine outlet, the air holes are evenly distributed in the front surface of the left cover, the sterilizing layer is located at the rear of the left cover and in the sealing ring and fixedly connected with the sealing ring, the heating layer is located at the rear of the sterilizing layer and fixedly connected with the sealing ring, the heating wires are evenly distributed in the heating layer, the medicine device is located at the rear of the heating layer and fixedly connected with the sealing ring, the gauze layer is located at the rear of the medicine device and fixedly connected with the sealing ring, the annular sealing pad is located at the rear of the gauze layer and fixedly connected with the rear surface of the gauze layer, the medicine inlet is formed in the middle of the circumferential face of the upper end of sealing ring, and the medicine outlet is formed in the middle of the circumferential face of the lower end of the sealing ring. The automatic nursing device is simple in structure and high in practicality.