Monte-Carlo simulation is applied to investigate energy transfer processes in luminescence. By simulating the static distribution of the Donor-Accepter transfer rates,we have got the decay of donor luminescence in static transfer model. The result coincides with that of Inokuti-Hirayama model. The influence of D—D transfer to donor luminescence decay is simulated and discussed for both the cases of independent and correlated D—D and D—A transfer rates.