This thesis is aimed to shown to know the policy of Indonesia in responding to cases of abduction of Indonesian citizens by Abu Sayyaf Group in 2016. This thesis explains about the policies regarding Indonesia’s policies to be able to improve the security of the sea in an effort to prevent cases abduction of Indonesian citizens by Abu Sayyaf Group. In its policy, Indonesia implements smart power to improve the security of the sea from the threat of Abu Sayyaf Group. This is done because the sea is the most used medium in terms of crosseconomy so that if the sea is threatened from maritime crime it will affect to the Indonesian economy. In this thesis uses the concept of smart power that initiated by Joseph Nye and the concept of maritime security. Source of datas for developing and explaining this thesis are, books, journals, news, and various articles in websites that have been analyzed in the discussion session. The results of this thesis shows that by implementing smart power will be more effective for Indonesia in an effort to improve the security of the sea so that cases of abduction of Indonesian citizens by Abu Sayyaf Group can be prevented. In addition, Indonesia's maritime security will bring changes to the economic development and also security of the sea