This application provides an information indication method. The method includes: determining, by a terminal device, that communication on a first downlink resource fails, where the first downlink resource is a resource configured by a network device for the terminal device; and sending, by the terminal device, first indication information to a network device on a first uplink resource, where the first indication information is used to indicate that the communication on the first downlink resource fails, the first uplink resource is a resource used to carry second indication information, and lengths of respective information bits of the second indication information and the first indication information are the same, but status bits of the information bits are different.