Abstract: The discussion of the unreasonable principle of act of property has progressed for years,and there has difficulties in bringing about great breakthrough and innovation from the perspective of purely abstract reasoning.After all, there is certain limitation in abstract reasoning,and falling into such a dilemma that is of little meaning to reality.From the angle of legal methodology,this article tries to find an innovation to search for the evidence of necessity of the hermeneutics of civil law's existence.Vi...