This wireless communication device is equipped with: a communication control unit for wirelessly connecting a work vehicle and a portable terminal with one another, an acquisition unit which is connected to a work vehicle onboard network, and acquires, from the work vehicle, work vehicle identification information for identifying the work vehicle; a generation unit for generating first character string data on the basis of the work vehicle identification information; and a setting unit for setting the generated first character string data to as a network name the communication control unit.