The existence of Chengho mosque in Indonesia is inseparable from the Admiral Chengho expedition history which visited in the archipelago, both in the urban area of Surabaya and Jember. Buildings, architects and ornaments of Chengho mosque is very unique and has its own characteristics. Chengho Mosque with its various ornaments is a symbol of the religious expression of Chinese Muslims ethnic to confirm their Islamic identity and chivalry. Therefore, this study focused on the religious expression of the Chinese ethnic in Surabaya and Jember with three formulations of the problem, namely how the typology of Chinese ethnic in the Chengho mosque in Jember and Surabaya? How do Chinese Muslims ethnic use the Chengho mosque in Surabaya and Jember ?, and what are the religious expressions of Chinese Muslims ethnic in the Chengho mosque in Surabaya and Jember? this study uses qualitative methods with the Geertzian and Weberian approach. So that, the result of this research are: the first, the typology of Chinese ethnic in Jember can be seen from three components, namely religion adopted, choice of profession and cultural arts. The second, the society use chengho mosque both in Surabaya and Jember to worship, social cultural and political. The third, Religious expressions of Chinese Muslims ethnic can be seen from three areas, such as the cultural area, the worship area and the socio-political area.