Admitting the achievements of the research on the science of economic law, we should meanwhile rationally reconsider the defective research method, and this takes great significance on the boom of economic law Positivist research method applied in the economic law research through case study and social survey should become not only the theoretical appeal but also the scholars’ practices In the aspect of issue choice and idea proof, positivist research method conduces to more attention on Chinese problems and greater ability of theoretical demonstration In other words, it is helpful to supply a gap between problem and ism