This article will describe complete approaches to understand what trans-nationalism is, how to anticipate its negative effects trough Islamic authentic feature which is lived in and attached by Indonesian-Moslems societies, and strategy to build a tolerance and multicultural society beyond rising Islamism and nationalism contestation, at least in few months ago. To construct this complex idea, this article will be formulated using sociological and anthropological design-approaches in every sub-theme. Yet this article was constructed using some researches reports which were have done. In the end, this article will conclude that; first trans-nationalism was not a dangerous theme, if Indonesian people belonging to their identities as attached feature. Second, Indonesian people had a strong institution (Pesantren) to build tolerance and multicultural Moslems societies. Third, Moslems scholars, such as Kyais and Moslem Intellectual ought to usually preach what Indonesia is based on cultural and nationalism values. The last, we have to recognize that uncertain political interest will arose all of Indonesia moderate world view.