The invention discloses a protective relaying setting calculation process application method. Divisional design is performed on a system interface, an image display area and a working area are determined according to a left and right structure, all functional operation is completed in the working area, and it is ensured that the focus of a user is fixed; operating function classification in all modules is determined according to protective relaying setting calculation specifications and daily using habits of system application staff, and operating processes of all functions are combed in a classification mode to determine process application of all the functions. All protective relaying work is put in a loop-locked workflow, interface input operation is greatly reduced, and B/S application advantages are organically combined with actual works, so that traditional operation guiding design is converted into process guiding design, and a standard process meeting the actual works is formed.