Abstract: The performance, test methods and results of stability of the thermal control materials with Kapton substrate under the various environments have been mainly discussed.The comparison of performance and stability between the imported and the self-made thermal control materials was completed。The results of evaluation indicate that the optical, thermal and electrical performances of the self-made products are identical with the same kind of the imported materials. But its performances such as the anti-UV irradiation,electron beam irradiation, protection from the atomic oxygen action and against-wet and thermal are better than thoes of the imported products.The AFM analysis shows that the method and technology of preparing TO and high reflectance Al films are very important to the performances of the thermol control materials