The invention relates to an automatic switching system of high-voltage distribution wires; therefore, information can be received and sent by wireless communication networks without limitation of a communication distance so long as in a service area, so that monitoring control on states of distribution wires can be carried out in a large range. The provided automatic switching system comprises: a circuit breaker control device, which has a wireless communication function; the required number of circuit breakers (A, B), which are connected with the circuit breaker control device; section control devices, which have a wireless communication function; the required number of switches (A1, A2, B1, and B2), which are connected with the section control devices; a cooperation control device, which has a wireless communication function; a switch L, which is connected with the cooperation control device; and a communication terminal. Software is preserved in all control units of the circuit breaker control device, the section control devices and the cooperation control device; and on the basis of information receiving and sending and cutting off of a fault section and switching of an undamaged section based on the information, the software carries out power transmission on undamaged section with power failure except the fault section, wherein the information receiving and sending are carried out by communication of wireless communication networks among the devices and between the devices and the communication terminal.