Fourth party logistics (4PL) is a supply chain integrator, the supply and demand sides and the leading force of the three parties. It is not the benefit of logistics, but it provides a complete supply chain solution by means of information technology, integration ability and other resources. It is to help businesses reduce costs and achieve the integration of resources, and rely on third party logistics providers, technology providers, excellent management consulting and other value-added service providers to provide, and extensive supply chain solutions unique to customers.