A dual SIM communication method for a terminal, characterized in that dual SIM cards share a main antenna and a diversity antenna, the dual SIM cards comprise a first SIM card and a second SIM card, and the method comprises: determining whether slots of the dual SIM cards are aligned; and in a case that the slots of the dual SIM cards are not aligned, controlling the first SIM card and the second SIM card to communicate in a first manner, wherein the controlling the first SIM card and the second SIM card to communicate in a first manner comprises: within an uplink slot of the second SIM card, controlling the second SIM card to transmit a signal by using the main antenna; for an odd-numbered downlink slot of the second SIM card, controlling the second SIM card to receive a signal by using the diversity antenna within the entire odd-numbered downlink slot, and controlling the first SIM card to transmit a signal by using the main antenna in a preceding time period within the odd-numbered downlink slot and to receive a signal by using the main antenna in a later time period within the odd-numbered downlink slot; and for an even-numbered downlink slot of the second SIM card, in a preceding time period within the even-numbered downlink slot, controlling the second SIM card to receive a signal by using the diversity antenna and controlling the first SIM card to transmit a signal by using the main antenna, and in a later time period within the even-numbered downlink slot, controlling the first SIM card to receive a signal by using the main antenna, wherein the uplink slot of the second SIM card and a downlink slot of the second SIM card are alternated. determining whether slots of the dual SIM cards are aligned; and in a case that the slots of the dual SIM cards are not aligned, controlling the first SIM card and the second SIM card to communicate in a first manner, wherein the controlling the first SIM card and the second SIM card to communicate in a first manner comprises: within an uplink slot of the second SIM card, controlling the second SIM card to transmit a signal by using the main antenna; for an odd-numbered downlink slot of the second SIM card, controlling the second SIM card to receive a signal by using the diversity antenna within the entire odd-numbered downlink slot, and controlling the first SIM card to transmit a signal by using the main antenna in a preceding time period within the odd-numbered downlink slot and to receive a signal by using the main antenna in a later time period within the odd-numbered downlink slot; and for an even-numbered downlink slot of the second SIM card, in a preceding time period within the even-numbered downlink slot, controlling the second SIM card to receive a signal by using the diversity antenna and controlling the first SIM card to transmit a signal by using the main antenna, and in a later time period within the even-numbered downlink slot, controlling the first SIM card to receive a signal by using the main antenna, wherein the uplink slot of the second SIM card and a downlink slot of the second SIM card are alternated. within an uplink slot of the second SIM card, controlling the second SIM card to transmit a signal by using the main antenna; for an odd-numbered downlink slot of the second SIM card, controlling the second SIM card to receive a signal by using the diversity antenna within the entire odd-numbered downlink slot, and controlling the first SIM card to transmit a signal by using the main antenna in a preceding time period within the odd-numbered downlink slot and to receive a signal by using the main antenna in a later time period within the odd-numbered downlink slot; and for an even-numbered downlink slot of the second SIM card, in a preceding time period within the even-numbered downlink slot, controlling the second SIM card to receive a signal by using the diversity antenna and controlling the first SIM card to transmit a signal by using the main antenna, and in a later time period within the even-numbered downlink slot, controlling the first SIM card to receive a signal by using the main antenna, wherein the uplink slot of the second SIM card and a downlink slot of the second SIM card are alternated.