Border trade is an important part of one country's external trade, especially once facing with the FTA (Free Trade Area) trend, how to change its growth pattern is very worth exploring. China Mainland and Vietnam resumed border trade in the year of 1991, since then the amount of mutual border trade has been constantly growing, and this promotes economic development in the border areas between China Mainland and Vietnam. As a result of the formation of China Mainland – Asean Free Trade Area, not only the economy of both China Mainland and Vietnam were affected, but China Mainland – Vietnam border trade had some changes also. This thesis will research the development of China Mainland – Vietnam border trade in the ASEAN+1 framework, thereby understanding the promotion of border trade for economic development in China Mainland – Vietnam border areas, looking into how the framework of ASEAN+1 impacts border trade as well as the problems of border areas (especially border ports), and then proposing ways and suggestions to solve these problems also.