Embodiments of the present application disclose a precoding method, an information sending method, and apparatuses thereof. The precoding method comprises: acquiring first information associated with a receiving matrix of at least one user equipment associated with a base station; and determining a first transmitting precoding matrix of the base station according to at least the receiving matrix of the at least one user equipment. According to the methods and apparatuses in the embodiments of the present application, a transmitting precoding matrix of a base station is designed according to a receiving matrix of a user equipment, which can reduce inter-cell interference.