It is undeniable that there exists uncertain factors weakening the trade effects on China of China-ASEAN FTA such as barriers except for tariff; competition in the substitutes between China and ASEAN members, competition from other countries signing FTA agreements with ASEAN members in ASEAN market. Include CAFTA are uncertain factors should not be ignored. It is also a spur for deeper regional integration. Thailand, for example, plans to open four new consulates in China, and to enhance transport links, in anticipation of the CAFTA. From the content mentioned above. It can be concluded that the main problem of barrier to trade is tariff. So Thailand and China joined the FTA and signing of China-ASEAN Free Trade Agreement (CAFTA) make two countries non-tariff in trade.