Provided in the invention is a single-chip microcomputer system with a control cabinet. The system comprises a cabinet body with a single-chip microcomputer arranged inside; a top wall board is arranged at the cabinet body with the single-chip microcomputer arranged inside in a pin joint manner; a single-chip microcomputer and a device for terminating the power supply guarantee at the time of cabinet body separation are arranged in the cabinet body with the single-chip microcomputer arranged inside. A network backstage terminal connected with the single-chip microcomputer is installed in the cabinet body with the single-chip microcomputer arranged inside. A coaxial cable leading wiring board and a coaxial cable leading wiring board-battery wiring board are installed in the cabinet body with the single-chip microcomputer arranged inside at the side of the single-chip microcomputer. Besides, a plurality of leading devices combined with the coaxial cable leading wiring board and the coaxial cable leading wiring board-battery wiring board are installed in the side wall of the cabinet body with the single-chip microcomputer arranged inside. Therefore, problems that the protection performance of the control cabinet is poor, the control cabinet has no network supervision performance, and the network control of the control cabinet can not be realized by the backstage terminal in the prior art are solved.