A codebook information processing method, comprising: acquiring first value information corresponding to a wideband precoding matrix index, first PMI, when a coarse search is performed; and determining, according to the first value information and a preset precoding matrix index, PMI, selection rule, codebook information to be used, characterized in that, acquiring the first value information corresponding to the first PMI when the coarse search is performed comprises: acquiring an initial value i11 rand of a first PMI1, an initial value i12 rand of a first PMI2, and an initial value i2 rand of a subband precoding matrix index, second PMI, randomly according to a currently configured Rank Indicator, RI, value, a codebook mode and antenna configuration, wherein the first PMI1 and the first PMI2 are horizontal and vertical PMIs, respectively; acquiring Numi 12 sets of PMI parameters according to the acquired initial values i11 rand, i12 rand and i2 rand, wherein the a th set of PMI parameters are {(i11 rand +a-1)mod(Numi11), (i12 rand +a-1)mod(Numi12), i2 rand}, where Numi11 and Numi12 are both positive integers respectively representing a total number of available first PMI1 and a total number of available first PMI2, and a is an integer less than or equal to Numi12; and selecting, according to the PMI selection rule, value information i12 save of the first PMI2 complying with the PMI selection rule from the Numi12 sets of PMI parameters as the first PMI2 acquired by performing the coarse search. acquiring first value information corresponding to a wideband precoding matrix index, first PMI, when a coarse search is performed; and determining, according to the first value information and a preset precoding matrix index, PMI, selection rule, codebook information to be used, characterized in that, acquiring the first value information corresponding to the first PMI when the coarse search is performed comprises: acquiring an initial value i11 rand of a first PMI1, an initial value i12 rand of a first PMI2, and an initial value i2 rand of a subband precoding matrix index, second PMI, randomly according to a currently configured Rank Indicator, RI, value, a codebook mode and antenna configuration, wherein the first PMI1 and the first PMI2 are horizontal and vertical PMIs, respectively; acquiring Numi 12 sets of PMI parameters according to the acquired initial values i11 rand, i12 rand and i2 rand, wherein the a th set of PMI parameters are {(i11 rand +a-1)mod(Numi11), (i12 rand +a-1)mod(Numi12), i2 rand}, where Numi11 and Numi12 are both positive integers respectively representing a total number of available first PMI1 and a total number of available first PMI2, and a is an integer less than or equal to Numi12; and selecting, according to the PMI selection rule, value information i12 save of the first PMI2 complying with the PMI selection rule from the Numi12 sets of PMI parameters as the first PMI2 acquired by performing the coarse search. acquiring an initial value i11 rand of a first PMI1, an initial value i12 rand of a first PMI2, and an initial value i2 rand of a subband precoding matrix index, second PMI, randomly according to a currently configured Rank Indicator, RI, value, a codebook mode and antenna configuration, wherein the first PMI1 and the first PMI2 are horizontal and vertical PMIs, respectively; acquiring Numi 12 sets of PMI parameters according to the acquired initial values i11 rand, i12 rand and i2 rand, wherein the a th set of PMI parameters are {(i11 rand +a-1)mod(Numi11), (i12 rand +a-1)mod(Numi12), i2 rand}, where Numi11 and Numi12 are both positive integers respectively representing a total number of available first PMI1 and a total number of available first PMI2, and a is an integer less than or equal to Numi12; and selecting, according to the PMI selection rule, value information i12 save of the first PMI2 complying with the PMI selection rule from the Numi12 sets of PMI parameters as the first PMI2 acquired by performing the coarse search.