The invention discloses an analog and digital mixed precoding mode based on a codebook. According to the method, through using analog code training, equivalent channel information can be effectively obtained, thus the optimization problem of NP-hard of analog code selection and digital precoding is converted into the optimization problem of sparse digital precoding, according to the optimized digital precoding matrix, the analog precoding code of each link is mapped, and finally the mixed precoding of analog precoding and diginal precoding is realized. The near optimal system performance can be obtained, the system complexity is reduced, the energy efficiency is improved, and the realization of the system is ensured.