In the first half of 2019, ASEAN became China’s second largest trading partner overtaking the United States for the first time since 1997. The Bilateral trade China/ASEAN represents 1.98 Trillions Yuan +10.5 % compare to 2018. Other regional initiative such as the Regional comprehensive Economic partnership “RCEP” one of the largest trading bloc boost trade and economic integration between ASEAN and six other partners and also with the Lancang Mekong Cooperation mechanism .In Cambodia ,the Belt and Road initiative “BRI” has been a driving force to connect with neighbors countries and regional integration. China is the major investor in the infrastructure such as road constructions (+2,000 km), hydro-power plants and bridges. Railways between Cambodia-Thailand and Vietnam are in progress. More than 3,000 Chinese companies have invested in the garment and textile sector, which accounts for 80% of all exports and employs about half a million Cam