The invention discloses a method for compiling Shanghai containerized freight index to generate the freight index which reflects the variation of the freight rate of a liner route through the freight rate. The technical scheme of the invention is that: the method comprises the following steps: selecting a sample route from a plurality of routes; determining a sample company which takes part in calculating the freight index on each route according to data reporting capacity and quality; determining a calculation formula of the freight rate of the SCFI branch route, a calculation formula of a comprehensive index and a route weight of the SCFI; determining rules for route weight adjustment, route adjustment and sample adjustment and a route weight conversion factor; establishing an expert database, and when the freight index cannot be normally issued, starting a predetermined emergency plan so as to extract the evaluation of the expert on the freight rate in the expert database; realizing a dual auditing mode of internal auditing and external auditing; importing sample data to generate the freight index based on an Internet platform, wherein the sample data is the freight rate data uploaded by the sample company; and auditing whether to issue the generated daily freight index.