Research paradigm is a collective name for research models such as specific research problems, research methods, and research theories. The main difference between the paradigms lies in research methods. At present, the research paradigms in the field of civil procedural law can be divided into two categories. One is the research paradigm of the normative law based on the perspective of judges, mainly using legal dogmatics and case analysis as the research methods; the other is the research paradigm of the social sciences of law based on the perspective of legislators, which is specifically divided into legal politics, legal sociology, legal economics and legal cognitive science, and the empirical legal research is the main method. It corresponds to the image of the Roman God called Janus with two faces in opposite directions. In the new era, facing the matter of constructing the theoretical discourse system of China Civil Procedural Law Science, it is necessary to explore and try the third paradigm on the basis of these two research paradigms, that is, the combination and complementation of the research methods of normative law and social science of law. Only in this way can the research of China’s civil procedural law get rid of the dilemma.