A gain adjustment control method, comprising: calculating energy of a full-bandwidth physical downlink shared channel, PDSCH, transmission signal in an intermediate frequency digital domain according to a set calculation period; determining a gain control adjustment parameter according to the calculated energy of the full-bandwidth PDSCH transmission signal; and controlling and adjusting a gain of a receiver according to the determined gain control adjustment parameter and a gain adjustment rule; wherein calculating the energy of the full-bandwidth PDSCH transmission signal in the intermediate frequency digital domain comprises: calculating average power P ssb of a cell reference signal SSblock of k1 symbols for a respective antenna which schedules bandwidth of N Resource Blocks, RB, where k1 is an integer greater than or equal to 2; calculating energy P pdsch _ bc _ 20rssi of a PDSCH signal of N RB, according to the P ssb and a power offset value per RB of PDSCH; and adding P pdsch _ bc _ 20rssi with a bandwidth conversion coefficient M, a multi-antenna gain BFG value and a reserved protection value Gu to acquire the energy of the full-bandwidth PDSCH transmission signal P pdsch _ bf _ All, where M=10*(log 10 273-log 10 X), X is a target gain control adjustment parameter, and the BFG value is a maximum power difference between the PDSCH signal and SSblock signal acquired on the respective antenna. calculating energy of a full-bandwidth physical downlink shared channel, PDSCH, transmission signal in an intermediate frequency digital domain according to a set calculation period; determining a gain control adjustment parameter according to the calculated energy of the full-bandwidth PDSCH transmission signal; and controlling and adjusting a gain of a receiver according to the determined gain control adjustment parameter and a gain adjustment rule; wherein calculating the energy of the full-bandwidth PDSCH transmission signal in the intermediate frequency digital domain comprises: calculating average power P ssb of a cell reference signal SSblock of k1 symbols for a respective antenna which schedules bandwidth of N Resource Blocks, RB, where k1 is an integer greater than or equal to 2; calculating energy P pdsch _ bc _ 20rssi of a PDSCH signal of N RB, according to the P ssb and a power offset value per RB of PDSCH; and adding P pdsch _ bc _ 20rssi with a bandwidth conversion coefficient M, a multi-antenna gain BFG value and a reserved protection value Gu to acquire the energy of the full-bandwidth PDSCH transmission signal P pdsch _ bf _ All, where M=10*(log 10 273-log 10 X), X is a target gain control adjustment parameter, and the BFG value is a maximum power difference between the PDSCH signal and SSblock signal acquired on the respective antenna. calculating average power P ssb of a cell reference signal SSblock of k1 symbols for a respective antenna which schedules bandwidth of N Resource Blocks, RB, where k1 is an integer greater than or equal to 2; calculating energy P pdsch _ bc _ 20rssi of a PDSCH signal of N RB, according to the P ssb and a power offset value per RB of PDSCH; and adding P pdsch _ bc _ 20rssi with a bandwidth conversion coefficient M, a multi-antenna gain BFG value and a reserved protection value Gu to acquire the energy of the full-bandwidth PDSCH transmission signal P pdsch _ bf _ All, where M=10*(log 10 273-log 10 X), X is a target gain control adjustment parameter, and the BFG value is a maximum power difference between the PDSCH signal and SSblock signal acquired on the respective antenna.