The present research is designed to illustrate why and to what extent Indonesia deviates from applying choice of law to international commercial contracts, in view of the acceptance and development of choice of law at the global level. The study proceeds to identify related factors. By way of conclusion, it proposes improvement strategies in light of the rapidly increasing number of international commercial transactions, the continuous development of choice of law, and the ambitious goals envisaged in Visi Indonesia 2045. In this context, the main purpose of the study is not only to unravel the reasons for Indonesia’s deviation and its subsequent lack of advancement but also to examine possible solutions to the problem.