As the largest Muslim country in the world，Indonesia’s socio-economic development is deeply influenced by Islamic Sharia law. With the development of International Islamic finance and the support of Indonesian government，Indonesian Islamic finance has developed rapidly in recent years，mainly including Islamic Bank，Islamic capital market，Islamic insurance and Zakat. It has become an important part of Indonesia’s financial system，but compared with the scale of traditional financial industry，it still exists as a supplement. This paper introduces and analyzes the operation rules and development tendency of Islamic finance in Indonesia.