Islam and State Ideology: Masyumi’s Experience in Indonesian Politics

The purpose of this paper is to investigate the history of Indonesian politics, the Indonesian Islamic party, Masyumi, has made efforts to propose Islam as the basis of the state at the beginning of an independent Indonesia. Methodology that used is history persfective based on history data.Result: Masjumi's struggle to make Islam the basis of the country was rejected by groups who supported Pancasila as the state ideology. Implication: This paper gives valuable reference to political elite parties to consider the adoption of policy based on history of partners and conflict management in the construction political institution in Indonesian politics.