Business switching method, mobile terminal and mobile switching center

The invention relates to the technical field of communication, in particular to a business switching method, a mobile terminal and a mobile switching center. The method includes that the mobile terminal receives a circuit switching domain fallback (CFSB) instruction sent by a mobile management entity (MME), falls back from a long term evolution (LTE) to a circuit switch (CS) domain according to the CSFB instruction and performs a first CS business in the CS domain, and receives an instruction of delayed return to the LTE domain sent by the mobile switching center (MSC), wherein the instruction is used for indicating the mobile terminal to continue to reside in the CS domain after completing the first CS business, and the mobile terminal continues to reside in the CS domain according to the instruction of delayed return to the LTE domain and performs a second CS business in the CS domain, and returns to the LTE domain after the second CS business is finished.