The present study set out from the condition that Indonesia has many counter-terror units each of which executes order from different institutions. Therefore, there are many questions about effectiveness and efficiency of the current counter terrorism management system. In the operational level, it creates some problems on response, and also problem on ruling, preventing, and problem on policy coordination.In terms of research methodology, the present study is planned to pattern the case-study research strategy and collects data from interview, observation, and document searching. On the other hand, research is conducted in three stages: planning, actuating, and reporting.Using modeling approach, the present study analyzes current Indonesian Counter-Terrorism System whether it uses convergence and divergence approach in order to improve counter-terror system in Indonesia. Convergence approach consists of clustering model and integration model. Meanwhile divergence approach consists of coordination model and networking model.The organizational structure of counter-terror system, which is formed pooled interdependence model. is marked by internal dynamics which, among others, are reflected both in fractionalization and disappointed expectations and which manifest themselves in differences of the traditional war /whims as well as differences of perception and evaluation among military leadership. This present study proposes alternative by using Convergence Model in the organizational structure of Counter-Terror Management System. Building preventive culture is also recommended.