Embodiments of the present invention provide a synchronization signal block indication method, a synchronization signal block determining method, a network device, and a terminal device. The synchronization signal block indication method includes: generating, by a network device, a synchronization signal block indication message, where the synchronization signal block indication message includes synchronization signal block group indication information and synchronization signal block indication information, the synchronization signal block group indication information is used to indicate an synchronization signal block group sent by the network device, the synchronization signal block indication information is used to indicate an synchronization signal block sent by the network device in each synchronization signal block group sent by the network device, and locations of synchronization signal block sent by the network device in synchronization signal block groups sent by the network device are the same; and sending, by the network device, the synchronization signal block indication message. Based on the synchronization signal block group sent by the network device and the synchronization signal block sent by the network device in each synchronization signal block group sent by the network device, the network device can indicate all the synchronization signal block sent by the network devices, so that the terminal device successfully receives the synchronization signal blocks.
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