The study of Proterozoic tectonic system for continental orogenic belt is a leading fundamental theoretic subject under discussion. Based on new progress of current tectonic theory and continental geology,This paper, illustrating by Qinling orogenic belt,make a prime discussion of the thought and methd onthe study of Proterozoic tectonic system for orogenic belt, include: combination of stable block and orogenic belt,limit to study on Proterozoic tectonic system of Phanerozoic orogenics ,comparison of Proterozoic stratigraphic division ,geochemical analyses of Proterozoic tectonic environment, etc.