Abstract: Comprehensively deepening the reform power theory involves subjectivity, objectivity, and environment power systems, which are of great spiritual value in realizing China dream. Rule of law can obviously safeguard the three power systems, while the alienation of dialectical relationship between legal institution and rule of law will exert negative influence on the three power systems. We should give full play to safeguard function of the rule of law from the perspective of the agreement of legal institution with rule of law.