Abstract: In order to satisfy the requirement for Water-Water Energetic Reactor (VVER) or fast reactor shielding calculation, Discrete Ordinate (SN) and Monte Carlo (MC) hexagonal assembly source calculation codes are developed and validated on VVER. Numerical results show that relative errors are less than 30% for three group neutron and photon fluence rate distribution from the inner surface of the barrel to the outer surface of the reactor pressure vessel, which demonstrates that the theoretical model and codes in this paper are correct and can be used on VVER or fast reactor shielding calculation