Average particle size,particle size distribution,carbon black undertone,color,gloss,tinting strength and covering power are important indexes to evaluate the comprehensive properties of titanium dioxide pigments.According to the basic indexes of titanium dioxide pigments and the test results of the application indexes in amino baking enamel,the quality of domestic and overseas titanium dioxide pigments were compared.The results showed that the quality of domestic titanium dioxide had almost reached the world-class level.