This study examined the reasons why the people contact religion, and further conversion to one kind of religious group. It was designed to investigate the members’ conversion in Tzu Chi Association of Police and Fire cum dependents (Tsu Chi). The qualitative in-depth interview will be adapted to collect data from conversion processes of Tsu Chi members, and the data will be analyzed by the procedure of grounded theory. First, to discuss the people of conversion under what kinds of reasons contact the religion. They were influenced by the social network of families or the neighbor, or wanted to know life topic and meaning of human being. Whether the religion had the very strong attraction to those who had personal religious experiences and lived difficulty, and much pressure in their life? Second, in order to understand that the Tsz Chi’s member motive to join the religious group generally induced three main parts: social network, volunteer impetus and leader's influence. The study observed Tsz Chi’s senior members who had a strong affect and paid their concern to lead police thought to access the religious group. Finally, the study discussed the other important attribute to affect the member conversion derive from the association leader “charisma” special characteristic. In additional, the paper argued that one of main conversion reasons resulted from the leader affiliated with the member. This study also discovered that unit chief’s perspective in work office, as a probably result of police occupation special attribute, was a facilitation and also obstruction strength to the member conversion. Moreover after the member conversion, their psychology promotion or the external behavior alter, was also one kind of strengthening conversion faith.
