A communication method, comprising: obtaining, by a terminal device, information about an access technology corresponding to a first service; receiving, by the terminal device, information about an access technology and resource information corresponding to the access technology that are broadcast by a network device; determining, by the terminal device, based on the obtained information about the access technology corresponding to the first service, and the information about the access technology and the resource information corresponding to the access technology that are broadcast by the network device, a first resource corresponding to the first service; and sending, by the terminal device, an access request to the network device by using the first resource; wherein the resource information corresponding to the access technology comprises the resource information corresponding to a service supported by the access technology; and the method further comprises: obtaining, by the terminal device, identity information of the first service; and wherein: the determining, by the terminal device based on the obtained information about the access technology corresponding to the first service, and the information about the access technology and the resource information corresponding to the access technology that are broadcast by the network device, a first resource corresponding to the first service, comprises: matching, by the terminal device, the information about the access technology corresponding to the first service and the identity information of the first service with the information about the access technology and the resource information, that are broadcast by the network device, to determine the first resource. obtaining, by a terminal device, information about an access technology corresponding to a first service; receiving, by the terminal device, information about an access technology and resource information corresponding to the access technology that are broadcast by a network device; determining, by the terminal device, based on the obtained information about the access technology corresponding to the first service, and the information about the access technology and the resource information corresponding to the access technology that are broadcast by the network device, a first resource corresponding to the first service; and sending, by the terminal device, an access request to the network device by using the first resource; wherein the resource information corresponding to the access technology comprises the resource information corresponding to a service supported by the access technology; and the method further comprises: obtaining, by the terminal device, identity information of the first service; and wherein: the determining, by the terminal device based on the obtained information about the access technology corresponding to the first service, and the information about the access technology and the resource information corresponding to the access technology that are broadcast by the network device, a first resource corresponding to the first service, comprises: matching, by the terminal device, the information about the access technology corresponding to the first service and the identity information of the first service with the information about the access technology and the resource information, that are broadcast by the network device, to determine the first resource.