Abstract:  By using TC index, RCA index and MS index, this paper analyzed comparatively the international competitivenesses of tea between the mainland and Taiwan.The results showed that the competitivenesses of tea across the Taiwan Strait in the international market presented downward trends.On the basis of the analysis, the corresponding countermeasures were put forward which included integrating the productive factors of cross-strait tea industries, learning Taiwan’s experiences to enhance the international visibility, strengthening personnel exchanges to improve the ability of using science & technology to develop tea industries, making full use of the Internet marketing to jointly explore the international market and cope with trade barriers.