Enlisted Personnel Allocation System (EPAS) is a latest developed system adopted by US army for soldiers’ selection and allocation. It was programmed using a linear programming optimization method, can yield significant improvement to the Army's personnel classification based on predicting a latest classification methodology that allocates applicants to jobs so as to maximize predicted performance while meeting accession requirements, and can by a linear programming optimization software program. This paper discuss the American Army classification criteria, history and principle of EPAS, how develop and comprise classification system for PLA by reference its.