Polyolefins, mainly polyethylene and polypropylene, are one of the most widely used organic polymers. However, its widespread applications, mostly singleuse, and low recycling ratio have caused severe environment pollution problems and the draining of nonsustainable petrochemical resources. The issues are particularly challenging in China. In tackling the challenge, polyolefin chemical recycling has unique advantages over physical/mechanical recycling. However, the polyolefins simple C—H and C—C single bond compositions make it hard to deconstruct polymer with reasonable efficiency and selectivity. Moreover, the lack of C—H and C—C bond activation/transformation methodologies also limits the possible solutions. This could be a longtime effort and needs widespread participation from all aspects of the society. It has become a topic of intense interest and focus for chemists around the world and many new methods emerged in the last few years. This review will briefly introduce the progress, mostly in the last few years, in this field based on the chemical reaction types. The introduction will focus on reaction products, catalytic efficiency, catalytic selectivity, scalability, and impurity tolerance, etc. Then there will be an outlook into the future of polyolefin chemical recycling.