The invention provides an application method for an intelligent medical speculum conveying system. The intelligent medical speculum conveying system comprises a speculum conveying seat, a conveying device and a controller. The conveying device comprises sliding rails, rail brakes and rail-changing devices. The rail brakes and the rail-changing devices are installed on the sliding rails. The sliding rails are obliquely arranged. Each sliding rail comprises a main sliding rail and multiple branch sliding rails. The branch sliding rails are in parallel connection with the main sliding rails. Whenthe conveying system is in use, the controller is utilized to control the speculum conveying seat to slide on the oblique sliding rails; speculums are conveyed to speculum main engines or examinationtables at different positions; after the speculums are used, the controller is utilized to control the speculum conveying seat to slide on the oblique sliding rails; speculums used are conveyed to aspeculum disinfection station and disinfected; thus intelligent and energy-saving conveying of the speculums is implemented; and cross contamination of used speculums and unused speculums is avoided.