The integration of regional economy is one of the main trends of the world economic development in our times;yet,East Asia has not taken a positive reaction to this trend for a long time.However,in recent years,the integration of regional economy led by ASEAN has started an upsurge in the whole East Asia,with the characteristics of various types of FTA.How to balance the multilateral cooperation and the bilateral cooperation then impulses the integration process?That's an issue that the ASEAN must solve immediately.As the important members of the ASEAN,Singapore and Thailand has been performing outstandingly in the process of ASEAN'S strategy for the integration of regional economy,and have had a good lead over the ASEAN's other countries.