City cloud implementation, the “Internet +software transaction service platform”, aims at “finding the most suitable company in the shortest time and ensuring the on-time finish of the project”. Based on the principle of “openness, fairness and impartiality”, the software capacitiy accumulated and technological advantages of Chinasoft International in the software information industry, relying on the extensive software supplier linked by JointForce, combining with the best practice of project management and the effective management method of the core members, it can manage the whole life cycle of the government informationization project construction digitally and intensively, and create a service platform covering the whole process of the government informationization project construction.