Abstract: In recent years, with the rapid development of logistics industry in China, it has also brought a lot of problems to the environment. Smart green low-carbon logistics is a hot topic of this year's two sessions, but also a new direction of the development of modern logistics industry. With the progress of science and technology, intelligent logistics service will become the core competitiveness of logistics enterprises, and the wisdom and green degree of third-party logistics enterprises is an important symbol to measure their intelligence level. Complexity science is the science of studying the behavior of complex system. Based on the complex scientific thinking, this paper constructs the intelligent green economic index system of the third party logistics enterprise, which is used to measure the intelligent green level of the logistics service of the third party logistics enterprise. And for logistics outsourcing enterprises to select the third party logistics enterprises it can also provide a measurement basis.