Due to historical reasons，there are still some misunderstandings and mistrust between China and ASEAN. Their bilateral relations have never been satisfactory. China needs to seek a pivot state in ASEAN which plays a bridging role to promote the establishment of China-ASEAN community of interests and destiny. Thailand has the indispensable conditions for becoming a pivot state. In the past few decades，Thailand has indeed played such a bridging role. However，we should also be aware that this role cannot be overestimated.