Islamic law contains a dynamic-adaptable aspect and should be reformed. Law reform agencies have always faced a serious challenge. In Indonesia, agent of law who consistence in the reforming islamic economic law is Sharia National Board of Indonesian Ulama Council (Dewan Syariah Nasional Majelis Ulama Indonesia/DSN-MUI). During 2000-2017, DSN-MUI have published 109 fatwa of sharia economic. The clausula of sharia economic dispute resolution in the Fatwa of DSN-MUI undergoing four time change. This paper focus on two problems. First, what factors do influencing change of clausula of sharia economic dispute resolution in the Fatwa of DSN-MUI. Second, how is law reform model behind the change of clausula of sharia economic dispute resolution in the Fatwa of DSN-MUI. By using method of normative legal research, obtained two findings. First, the change of clausula of sharia economic dispute resolution in the Fatwa of DSN-MUI caused by economic factors and law factors. Second, there are two models of law reform that exist behind the formulation of clausula of sharia economic dispute resolution in the Fatwa of DSN-MUI, namely law eclecticism and remodeling law.