This application provides a communications method and apparatus. According to the method, a receiving terminal receives, from one or more sending terminals, X PSSCHs that are in a one-to-one correspondence with X PSFCH resources, determines M PSFCH resources based on priorities of the X PSFCH resources, transmit power corresponding to the X PSFCH resources, and total transmit power of the receiving terminal, and sends feedback information to some or all of the one or more sending terminals on the M PSFCH resources, so that the receiving terminal can send the M PSFCH resources based on a sending capability (namely, the total transmit power) of the receiving terminal. This improves overall performance of a network system.