Abstract: At present, Chinese pipeline transportation technology of drugged crude oil occupies first place in the world. The remarkable techno-economic and social benefits have been obtained in the process of additives application, which proves that the technological road taken is absolutely correct and effective in the introduction, self-development, localization of manufactures and systematization and competition in international market in the additives development. The author puts forward some suggestions in the light of deepening the study of crude oil rheology and rheological mechanism as well as the development of new flow improver.