Provided are a resource indicating method, an apparatus, an access network device, a terminal and a system, which relate to the field of communications. The method includes: an access network device sends configuration information to a terminal, where the configuration information includes time domain resource grouping information for indicating a time domain distribution of at least one group of time domain resource units: and the access network device sends resource indication information to the terminal, and the terminal determines a time domain resource unit used by the terminal according to the resource indication information and the time domain resource grouping information. Resources that are discontinuous in the time domain can be flexibly indicated, thereby achieving the effect of indicating resources that are discontinuous in the time domain.