Abstract: The reason why Marxism can advance with the times is that it finds a correct path according to the conditions of the times and the specific national conditions. The scrutiny and investigation of road exploration must focus on the cornerstone of scientific methodology. Based on the investigation of theory and reality, this article puts forward the following four principles for the methodology of road exploration: combination of basic principles and concrete reality, unity of reference and innovation, integration of ideal goals and realistic conditions and unison betweeen continuity and phases.