Disclosed are a time-domain resource determination method and apparatus, and a computer storage medium. The method includes: receiving, by a terminal, first indication information sent by a network device, wherein the first indication information is used to indicate whether a first time-domain resource determination rule or a second time-domain resource determination rule is used to determine whether a first time slot is used for transmitting a first channel scheduled by first scheduling information; determining, by the terminal, a time-domain resource determination rule to be used according to the first indication information, and determining at least one time slot for transmitting the first channel based on the determined time-domain resource determination rule; and performing, by the terminal, transmission of the first channel with the network device in the determined at least one time slot.