The embodiment of the invention provides a method and equipment for configuring a network slice identifier and a computer storage medium. The method can be applied to network side equipment, and comprises the following steps: selecting auxiliary information NSSAI for the network slices of the first type of network slices based on the set partition granularity, and configuring corresponding network slice short identifiers SSI; wherein the NSSAI and the corresponding SSI both indicate the same network slice, and the SSI is shorter in length than the NSSAI; and sending the NSSAI carrying the first type of network slice and a downlink message of the corresponding SSI to User Equipment (UE). The method not only reduces the resource consumption of the signaling, avoids the waste of the signaling resource between the UE and the network side, but also enlarges the applicable scene of controlling and processing the network slice.