In recent years, due to the advancement of military science and the reduction of the national defense budget, the national army has experienced various organizational streamlining work in the past few years. Because of the reduction of overall strength, the manpower of the common clothing replenishment operation for army has also been greatly reduced. However, there has not been a reduction in the demand for clothing replacement, resulting in an imbalance between supply and demand of manpower and an increase in clothing appeals. This study takes the manpower of the common clothing replenishment operation for army as the research object, and combines the concept of supply chain management with the introduction of R. O. C. Military Exchange Service. From the perspective of system dynamics, we can find the causal interaction of each key variable's relationships, then constructing the dynamic quantification model of this study, and continue to use this model to analyze and simulate relevant policies. This research will discuss the systemic trends that are being explored from different policies (e.g., number of procurement staff, promotion rate, and upgradation rate personnel) to trends (e.g., total number of appeals, the ratio of replenishment working hours, the ratio of procurement working hours). Accordingly, further theoretical and practical implications are discussed.