There are limits that regulate in doing muamalah, in order nobody feel lost and dominate another. Since ancient times, the market is supervised by supervisor to stabil the activities inside it. This research aims to determine the role of the industry and trade department (disperindag) in overseeing traditional markets, This study uses the type of qualitative research and type of research “case study“. Based on this research, consider that the industry and trade department has not done yet its role as well as possible. For improving the function and role of trade department at Sragen, the researcher also went to the best market in supervising at Indonesia, it was trade department at purwokerto because they have made the good supervision at Manis Market at Purwokerto. And asking the advice and opinion of province trade department at semarang about the role of both (trade department of sragen and porwokerto).