In this paper, the model that we constructed to simulate the DPRHS of Fe100-xPx(x= 25, 20, 15) is taken as the primary configuration. This configuration is then subjected to relaxation under the quasi-dynamical equilibrim boundary through the tail truncated Morse potential (energy minimization). The total energy, reduced distribution function, coordination number distribution, angular distribution and homogeneity are obtained from the calculated data. The dependent relation of the structure of Fe100-x Px on the composition are discussed.