It is the fact that Korean police has not focused on establishing identity but focused on establishing system due to the war under the confused situation which accepted police system of continental law in the period of Japanese Colony and then accepted the police system when being governed by USA. Afterward, as political, economic, and social atmospheres outside became stable, police identity, the philosophy of police activity through internal introspection in order to orient police activity in modern society, is needed. However, most of approaches for establishing police identity have focused on phased measurement by emphasizing to find major variables. Such identity of police organization through certain measurement study could not only carry out replication but also showed its limit to internalize ideal identity. Therefore, this study analyzed the reflectivity of police activity according to how it depends on certain means and depending means as a recognition to internalize the identity in order to discuss the formation of necessity and approach in establishing police identity, and suggested its results.