Abstract The purpose of military service is to have enough manpower to form military and in order to maintain national security. Thus, the military service system has direct influence on the quality of military and has direct impact on the result of the conflict and survival of nation. History has told us the importance of military establishment, but most people still emphasis on ¡§force employment¡¨ and ignore military establishment, In recent years, when we talked about defense policy reform, you will always hear abolish conscript service and start volunteer service; most of disagreements think conscript is not suitable for the current condition in Taiwan, at the same time that volunteer force will bring us more professional military, and mobilization will only need during war time. The purpose of this research paper is to analysis the possibility of adopt full volunteer service, through the study of others¡¦ experience, lesson learned and would trend. Through the research discovered that volunteer service is the modern trend, and at current time period we can not suddenly switch to full volunteer, it should be divided into different phases and progressively transform from conscript to volunteer service, and reaching the final goal of full volunteer force and professional military establishment. To reach this final goal we have to develop a strategy and to improve our recruitment skill. Keyword : Military service, Volunteer service, Conscript service, Mixed volunteer system, Possibility