Disclosed are a carrier aggregation implementation method for multiple carriers and a base station, which are used for improving the utilization rate of carrier resources and improving the service capacity. The method comprises: a base station establishing a first cell and a second cell; the base station configuring a first carrier corresponding to the first cell as a carrier aggregation (CA) main carrier of a terminal and configuring a second carrier corresponding to the second cell as a CA auxiliary carrier of the terminal, wherein the terminal is located in the first cell, and the area in which the terminal is located is not covered by a common control signal borne by the second carrier corresponding to the second cell, and wherein the second carrier corresponding to the second cell is used for bearing data information needing to be sent by the terminal and a dedicated reference signal, the first carrier corresponding to the first cell is used for bearing control information corresponding to the data infor
