Abstract: Catalytic conversion of paraffin to light alkenes is a new route for maximizing propylene production. Existing problems of steam pyrolysis were summarized. Research advances in catalyst and reaction behavior of catalytic pyrolysis and catalytic oxidation was reviewed, respectively, including discussion on current situations and developing tendency. It seems that in order to enhance alkene yields and further decrease dry gas yield the development of new zeolite catalysts which allow paraffin to crack at lower temperature is the main target of catalytic pyrolysis. In addition, it is essential for commercialization of catalytic oxidation to intensify studies on catalytic mechanism and catalysts with low temperature activity and high selectivity and strengthen the process research at the same time.