International investment is gradually developed with the rise of international trade activities. With the continuous progress of science and technology, the deepening of international division of labor and the increasing international competition, the international capital movement is becoming more and more frequent, the scale of international investment is increasing unprecedentedly, and foreign direct investment with multinational companies as the main body has developed rapidly, which has become a driving force of world economic development. The lawyers of the international legal affairs department of Dehehantong have received strict and systematic legal education in famous law schools at home and abroad. They are rigorous, dedicated and experienced. They have their own unique opinions and handling styles for international investment projects.