The invention relates to a RS485 to eight route RS232 wireless communication converter, which is a wireless communication protocol based on the serial data interface standard, belonging to the technical field of wireless communication. The RS485 to eight route RS232 wireless communication converter comprises a RS485 receiving and sending control circuit, a 1 route to 8 route TTL circuit, a RS485 communication circuit, a RS232 to TTL circuit, isolated power circuits, and a wireless receiving and sending module; wherein the RS485 receiving and sending control circuit is used to switch the sending and receiving states of 485 communication; the 1 route to 8 route TTL circuit makes the 1 route receiving end become the 8 route receiving end, and makes the 1 route sending end become the 8 route sending end; the RS485 communication circuit realizes the communication conversion between the RS485 and the TTL; the RS232 to TTL circuit realizes the conversion of serial communication protocols; 8 pieces of 232 chips are divided into 4 groups, each group has 2 pieces, and each group is supplied by 4 isolated power circuits and does not affect each other; and the wireless receiving and sending module is responsible for the communication of data. According to the invention, the circuit is simplified through the selection of the chip and the design of the circuit, therefore, the interference among a plurality of wireless networks is avoided, and the safety and reliability of the converter is improved; meanwhile, the multiple sets of data are received and sent by the wireless network, therefore, the labor cost is improved, and the work efficiency is improved.