An apparatus for determining a repetition quantity of a downlink control channel, wherein the apparatus comprises: a receiving module, configured to receive a downlink control channel, wherein the downlink control channel is used to carry processed downlink control information, and the downlink control information is processed in a network side according to processing information corresponding to a repetition quantity of the downlink control channel; and a determining module, configured to determine the repetition quantity of the downlink control channel according to the downlink control channel; wherein the determining module comprises: a descrambling unit, configured to: for any repetition quantity in multiple stored repetition quantities, perform, according to a scrambling sequence corresponding to the repetition quantity, descrambling on the processed downlink control information carried on the downlink control channel; a verification unit, configured to perform verification on descrambled downlink control information according to a cyclic redundancy check, CRC, bit corresponding to downlink control information carried on the downlink control channel; and a first determining unit, configured to: if the verification succeeds, determine the repetition quantity as the repetition quantity of the downlink control channel, wherein the descrambling unit comprises: a first descrambling subunit, configured to perform, according to a mask corresponding to the repetition quantity and a radio network temporary identifier, RNTI, of user equipment, UE, descrambling on a scrambled CRC bit in the processed downlink control information carried on the downlink control channel, wherein when antenna selection is configured, the descrambling unit comprises: a second descrambling subunit, configured to perform, according to the mask corresponding to the repetition quantity, an antenna selection mask, and the RNTI, descrambling on the scrambled CRC bit in the processed downlink control information carried on the downlink control channel. a receiving module, configured to receive a downlink control channel, wherein the downlink control channel is used to carry processed downlink control information, and the downlink control information is processed in a network side according to processing information corresponding to a repetition quantity of the downlink control channel; and a determining module, configured to determine the repetition quantity of the downlink control channel according to the downlink control channel; wherein the determining module comprises: a descrambling unit, configured to: for any repetition quantity in multiple stored repetition quantities, perform, according to a scrambling sequence corresponding to the repetition quantity, descrambling on the processed downlink control information carried on the downlink control channel; a verification unit, configured to perform verification on descrambled downlink control information according to a cyclic redundancy check, CRC, bit corresponding to downlink control information carried on the downlink control channel; and a first determining unit, configured to: if the verification succeeds, determine the repetition quantity as the repetition quantity of the downlink control channel, a descrambling unit, configured to: for any repetition quantity in multiple stored repetition quantities, perform, according to a scrambling sequence corresponding to the repetition quantity, descrambling on the processed downlink control information carried on the downlink control channel; a verification unit, configured to perform verification on descrambled downlink control information according to a cyclic redundancy check, CRC, bit corresponding to downlink control information carried on the downlink control channel; and a first determining unit, configured to: if the verification succeeds, determine the repetition quantity as the repetition quantity of the downlink control channel, wherein the descrambling unit comprises: a first descrambling subunit, configured to perform, according to a mask corresponding to the repetition quantity and a radio network temporary identifier, RNTI, of user equipment, UE, descrambling on a scrambled CRC bit in the processed downlink control information carried on the downlink control channel, wherein when antenna selection is configured, the descrambling unit comprises: a second descrambling subunit, configured to perform, according to the mask corresponding to the repetition quantity, an antenna selection mask, and the RNTI, descrambling on the scrambled CRC bit in the processed downlink control information carried on the downlink control channel. a first descrambling subunit, configured to perform, according to a mask corresponding to the repetition quantity and a radio network temporary identifier, RNTI, of user equipment, UE, descrambling on a scrambled CRC bit in the processed downlink control information carried on the downlink control channel, wherein when antenna selection is configured, the descrambling unit comprises: a second descrambling subunit, configured to perform, according to the mask corresponding to the repetition quantity, an antenna selection mask, and the RNTI, descrambling on the scrambled CRC bit in the processed downlink control information carried on the downlink control channel.