The invention provides a wireless long-distance computer input system based on LoRa. The wireless long-distance computer input system based on LoRa comprises a LoRa receiver and a LoRa terminal device wirelessly connected with the LoRa receiver. The LoRa receiver comprises a first central processor, a first LoRa communication module, a first power module and a USB interface, wherein the first LoRa communication module, the first power module and the USB interface are connected with the first central processor respectively. The LoRa terminal device comprises a second central processor, a second LoRa communication module and an input device, wherein the second LoRa communication module and the input device are connected with the second central processor respectively. The wireless long-distance computer input system based on LoRa has the advantages of being established at a low cost by utilizing the advantages of low power consumption, long distance and low price of LoRa, and achieving wireless long-distance computer input.