Embodiments of the present application disclose a wireless communication method, a terminal device, and a network device. The method includes: determining, by a terminal device, according to information of a spatial location of the terminal device, an identity of a communication sub-zone of the terminal device, where the spatial location of the terminal device includes altitude of the terminal device in a communication zone, and the communication zone includes at least one communication sub-zone in terms of the spatial location; and performing, by the terminal device, sidelink communication on a target resource pool corresponding to the identity of the communication sub-zone of the terminal device. The method, the terminal device, and the network device in the embodiments of the present application help to reduce the probability of conflict for a terminal device when performing sidelink communication.