Abstract: Spatial scope definition and function identification is not only the basis of theoretical study of shipping cluster area,but also the precondition for industry and urban planning decisions. Previous studies have mostly focused on the qualitative description, and the precise definition of spatial scope and quantitative identification of functions are still rare. Based on the address and business scope of shipping service enterprises(organizations) in 2019,this paper uses G index, G* index and keyword co-occurrence network to define the spatial scope and identify the functions of Shanghai shipping service clusters.The results show that: (1) the distribution of the whole and sub industry of Shanghai shipping service industry are high value clusters, and eight shipping service clusters have been formed. (2) The important function elements are highly overlapped in “warehousing”, “international freight forwarding” and “cargo transportation”, and the key function elements are highly correlated to port shipping industry, special regulatory policies and local industries. (3) There are significant differences in the function element cluster of different types: the endogenous type includes Jinshan area, Changxing island area and Baoshan area,which are dominated by warehousing, transportation and local industry extension.Function clusters include “road freight transportation”, “miscellaneous labor”, “ship equipment and accessories”. The exogenous type includes Waigaoqiao area, Pudong airport area and Lingang area. Function clusters are mainly composed of modern logistics and advanced business forms, including “inter enterprise trade and agency”, “international shipping agency”, “residual value treatment and maintenance of leased property”, etc. The mixed type includes the North bund and Lujiazui area.The funcion clusters include “ship engineering”, “supply chain management”, “exhibition service”, etc.