The present invention provides a communication method for a wireless terminal and a host device, a wireless terminal, and a host device. The method includes: reporting, by a wireless terminal, a port type of a port corresponding to the wireless terminal to a host device, where the port type is based on a network layer data transfer protocol, so that the host device drives the port by using a port driver corresponding to the port type; establishing, by the wireless terminal, a communication link that is based on the network layer data transfer protocol between the wireless terminal and the host device through interaction with the host device via the port; and transmitting, by the wireless terminal, a service packet and a type of the service packet via the communication link that is based on the network layer data transfer protocol.