Expansion control box for expanding square cabin

The utility model discloses an expansion control box for expanding a square cabin, which comprises a bottom plate positioned at the bottom, an expansion box front panel positioned at the front, an expansion box rear panel positioned at the rear, and expansion box casings positioned on two sides, an expansion control main control board and a servo driver are installed on a bottom plate of the control box, the expansion control main control board is electrically connected with the servo driver, and the servo driver is electrically connected with a servo driving motor which is arranged outside the box body and used for driving the expansion square cabin and used for controlling starting and stopping of the servo driving motor; case sliding blocks are installed on the two sides of a bottom plate of the control box and slide back and forth along cabinet body guide rails through the case sliding blocks, the whole control box is pulled and opened in the cabinet body, and meanwhile ventilation holes are formed in sid