The present application relates to the technical field of encoding and decoding verification, and in particular, to an LDPC simulation verification platform and verification method. The verification platform comprises a sequence, an input unit, a to-be-tested device, an output unit, a reference model, and a scoreboard. The LDPC simulation verification platform is developed based on the UVM verification methodology, which is convenient for transplantation and redevelopment; through the verification matrix optimization program developed based on the MATLAB, an optimal verification matrix can begenerated for different NAND Flash particle characteristics; through the LDPC encoder/decoder reference model developed based on the C++, the expected data of each computing node in each codeword operation cycle can be accurately output, and by comparison with the resistance transistor logic code computed result, the problem location can be quickly locked; and by integrating the programming language interface component, real-time comparison between the C++ reference model and the resistance transistor logic code result and the error reporting can be implemented, and verification efficiency canbe improved.