Based on the general Monte Carlo neutron photon coupled transport code JMCT, the sophisticated model of Daya Bay Nuclear Power Station reactor was built. Meanwhile, the keff and some local tallies were calculated. The results were compared with the same models calculated by the Monte Carlo particle transport code MCNP, and it showed that relative errors were less than 10-3, which verifies the capability of JMCT in dealing with the large-scale complex geometry models. ©, 2014, Yuan Zi Neng Chuban She. All right reserved.