An information collection device of an information collection system of a mining machine collects operation information from the dump truck. The information collection device transmits a position information request command to request the transmission of position information about the dump truck through a second wireless communication device at a predetermined time. When the dump truck whose response to the position information request command is received by the second wireless communication device can stay in the communication range of an in-vehicle wireless communication device until the communication of the operation information of the dump truck ends, the information collection device collects the operation information of the dump truck whose response is received by the second wireless communication device.