Method, device and system used for establishing wireless network connection

The invention discloses a method, a device and a system used for establishing wireless network connection and belongs to the computer network field. The method comprises steps that network configuration parameters of a repeater are acquired by a mobile terminal; the network configuration parameters are sent to target equipment through a first communication link established between the mobile terminal and the target equipment, the target equipment is used for employing the network configuration parameters to establish a first wireless network connection with the repeater. The method solves problems of inconvenient operation and relatively low efficiency caused by utilizing a PC to provide the network configuration parameters of the repeater to an unmanned plane requiring various manual operation steps; the first communication link between the mobile terminal and the target equipment is utilized to provide the network configuration parameters, the whole process does not require user intervention, and the technical effects of operation simplification and efficiency improvement are realized.