The invention relates to a power generation enterprise power market settlement verification system and a method, belonging to the technical field of power system. The system includes data acquisitionmodule, account data verification module, transaction power verification module, settlement power verification module, deviation power verification module, contract transfer transaction verification module, settlement power verification module, data verification and correction module, login information input module, identity verification module and display module. This system is based on the actual work of the electricity market transaction settlement, The key control nodes of market settlement verification for power generation enterprises are comprehensively sorted out. Effective verificationprocesses and reliable verification algorithms, The invention can carry out multi-dimensional, multi-level and omni-directional full-flow verification on the market settlement result of the power generation enterprise, greatly improves the market settlement verification audit efficiency and settlement accuracy rate of the power generation enterprise, and effectively avoids settlement errors.