Abstract: Combined with current application fields and status of plant protection UAV，system composition and performance characteristics of plant protection UAV were analyzed.From perspective of job attributes and user experience，direction of inspection and detection for flight quality of plant protection UAV was selected as research object.A test method for flight control accuracy index of plant protection UAV was proposed.Composition and operation method of measuring equipment were introduced，analysis and evaluation of measurement uncertainty of the method were focused so as to provide certain basis for quality identification and selection of UAV.