The invention provides a button box which comprises a box body and a controller arranged in the box body. The surface of the box body is provided with switch buttons connected with the controller; each switch button is corresponding to indicator lights for displaying the state thereof; one side of the box body is provided with a power supply interface, a main communication interface and a standby communication interface; power is supplied to each component in the box body through the power supply interface; the main communication interface is connected with an upper computer to receive a control instruction; the standby communication interface can connect other button boxes in series; the box body is provided with a dial switch connected with the controller; and access addresses of the main and standby communication interfaces are adjusted through the connection or disconnection of the dial switch. The button box is simple in structure, meets an intrinsic safety protocol, is made of stainless steel material, and can be suitable for underground mine environment; and the control mechanism is arranged inside and is in a seal state in the box body, thereby preventing hazardous gas of the underground mine.