Acting as significant high-temperature protective coatings and important bond coats of thermalbarrier coatings, Pt modified aluminide coatings (PtAl coatings) have been used in large quantity production.Since commercial application abroad for about fifty years, PtAl coatings have been systematically optimizedand developed in terms of processing technologies, microstructure and composition. Also, PtAl coatings havebeen developed a variety of serialized coatings. However, there is a huge gap between the domestic and foreigndevelopment regarding the technical aspect. Driven by the development of the single crystal superalloy and thedemand for high-performance high-temperature protective of gas turbine engines, the research of PtAl coatingsand modified PtAl coatings rapidly developed domestically. This thesis reviews the development, application,performance characteristics, mechanism of Pt and latest research on PtAl coatings. Moreover, this articlesystematically introduces the microstructure characteristics and processing technologies of PtAl coatings, andprovides the underlying direction of developing PtAl coatings in domestic research.