International project contracting is a national government department, company, enterprise or project owner (generally called the project owner or employer) engineering contracting foreign principal responsible in accordance with the provisions of the conditions to assume complete an engineering task. International project contracting is a comprehensive international economic cooperation, is a kind of international technology trade, but also a way of international labor service cooperation. The reason why this approach as a means of international technology trade, because the process of international contract engineering project construction, contains a large number of technology transfer, especially in the later period of project construction, the contractor owners to train technical staff, to provide the required technical knowledge (patented technology, proprietary technology), in order to ensure the the normal operation of the project.