With the application of engineering polymers in the field of tribology, it is required that polymer materials not only have good tribology properties, but also meet the requirements of mechanical properties, heat resistance and aging resistance, so as to meet the application requirements of complex tribology conditions in modern engineering equipment. In this book, the accelerated aging tests and tribology tests in laboratory, as well as modern testing techniques and analysis methods are introduced from the perspective of aging resistance and tribology properties of common typical engineering polymers. Molecular simulation, anti-aging design, tribological modification and forming process of polymer were also introduced. This book can be used as a teaching material for graduate students in polymer and tribology courses in higher education institutions, as well as for senior undergraduates majoring in mechanical engineering and materials, and as a reference book for engineers and technicians.