Thailand and China began and strengthen relations between the Han Dynasty and Tang Dynasty kingdom in northern Thailand has established the capital at the end of the Song Dynasty, the Yuan Dynasty in China since the establishment of relations. diplomacy between Thailand and China in 2518, when leaders of the two countries have visited each other several times. Good relations and cooperation between the two countries developed rapidly. In terms of trade, "Thailand's commodities were shipped to sell in China and Chinese merchant ships entering Thailand outnumbered all other foreign merchant ships in Thai ports. China had become Thailand's major partner in foreign trade, and merchants in Thailand became primarily Chinese." Culture. economic and diplomatic later, in March 2521 the Government of Thailand and China signed a trade agreement. This creates a good basis for the development of international trade and the establishment of diplomatic relations. Thailand and China succeeded in enhancing mutual understanding and trust between the two countries to tackle insecurity in the region of Southeast Asia. The support and development of the region south of the battlefield into the commercial market , the Chinese people to trade and settle in Canada is increasing every year, Thailand and China became hostile and friendly relations among different relationships. The two countries have been developed in many areas. Result in the trust. The direction of interest and cooperation between the two countries. "Ties to the land" has become a model of cooperation and goodwill between Thailand and China is like a family.