Taking into account the effects of shadowing and jet quenching, the large transverse momentum distribution of K+, π+ and K+/π+ ratios at originating from resolved photoproduction processes is calculated based on perturbative quantum chromodynamics. It is found that the contribution of K+ and π+ produced by photoproduction processes is evident. The K+/π+ ratios in Au–Au collisions show an obvious enhancement compared with p–p collisions. The numerical results indicate that the photoproduction processes are good modification for kaon and pion production.