The mechanical structure of the traditional pipeline robot is relatively fixed,which can complete work tasks single,and there are a lot of repeated problems in the design of different kinds of product structure,which cannot quickly deal with the changing market demand.By performing the analysis of the system structure of the 〖JP2〗existing pipeline robots,a combination of axiom design method and IDEF functional modeling method was proposed to classify different types of pipeline robot systems.In this method,the mapping relationship between function-structure〖JP〗 and product function activities was used to divide the product function modules in a top-down way,and the general modules and special modules in different types of pipeline robot systems were extracted,and finally a modular pipeline robot resource platform with certain versatility was obtained.So the general exchange of component level is realized,resource sharing can be formed,and it becomes more adapt to the market demand.