Abstract: System theory or systematology provides brand new vision and new method for people to recognize and rebuild the world and it also plays a powerful role in guiding the research of petroleum geology. By using viewpoint of systematoloty, this paper reinvestigates the petroleum seismogeology, a emerging interdiscipline, from all aspects, including its history, research object, scale, content, method, applied prospect and development trends in petroleum exploration and development, and suggests that only introducing the system theory to petroleum seismogeology, can the research level of it be really improved, promoting its development and perfection, and gaining much better results in the actual application.

Key words: systemtheory, research method, petroleum seismogeology