This research examined the communicative institution of the presidential chief staff of the Republic of Indonesia during Jokowi's administration. The purpose of this research was to find a communicative model applied by the presidential chief staff in making public decisions. The theory used was the role of Communicative Constitutive of Organization, the management concept of bureaucracy and public office, and the rational model of public decision making. The method used in this research was case study in which cases analyzed from policies through interview and observation, and literature study. The results of the research on decision-making processes of public policies based on national development planning in Jokowi's Nawacita were institutional communications carried out by the Presidential Chief of Staff (PCS) in the form of monitoring, solving barriers related to bureaucracy management in communication toward public through various online media, talk shows, and news. Communication across institutions and internal communication were carried out exclusively. Based on rational decision making, the communicative model of the presidential chief of staff was one-way process providing no room for discussion or negotiation involving the community. stakeholder external participation in the institutional communicative model were in ministry department, non-institutional department, provincial, district, and city governments.