Example demodulation reference signal (DMRS) A DMRS port indication methods and apparatus are provided, to meet NC JT transmission. In one example method, a network device determines DMRS port indication information and quasi-co-location (QCL) indication information, and sends the DMRS port indication information and the QCL indication information. The DMRS port indication information is used to indicate a DMRS port set, the DMRS port set is one of a plurality of DMRS port sets.