In the history of international relations or the neighboring country relations，no any harmonious relationship can be compared to the Sino-Thai relations though there was also a very short cold time. Like the famous Thai historian Krompraya Dhamrong rachanuphap，the prince in Lama V period said，no countries in the world like China and Thailand could keep friendly relations for so long time. The driving force of Sino-Thai friendly relationship had mainly be based on the similarity of culture and value like peaceful，tolerant，merciful and gentle natures of both people，which led the wish of rulers of both countries to be friendly. Therefore，we believed the traditional friendly relation and common benefits will lead Sino-Thai relation better than ever in 21th century.