Provided are a wireless network adapter and a configuration method of same. A wireless network adapter comprises: a self-configuration portion, used to configure the wireless network adapter as an access point adapter, and generate access information of a wireless network access point; a cable connection portion, connected to a second wireless network adapter, and used to transmit the access information to the second wireless network adapter and receive an acknowledgment message from the second wireless network adapter; and a wireless transceiver, connected to the second wireless network adapter. Another wireless network adapter comprises: a cable connection portion, used to receive access information from an access point adapter; a parameter storage portion, used to store the access information as a setting parameter; a self-configuration portion, used to configure the wireless network adapter as a client mode and generate an acknowledgment message; and a wireless transceiver, connected to a wireless network access point. Configuration of multiple wireless network adapters connected to each other may be implemented without any input parameter and without the need of access a configuration webpage by using a computer.