Abstract: In order to improve Honghe tobacco company staff quality and vocational skills, we designed and developed a senior tobacco grading (technician) online examination system (OES). The system architecture was based on B/S mode, composed of online examinations, online exercises and system management module. The system contained 12 database tables, 55 function modules, 4808 line of cods, which was deployed on statewide LAN. The application result showed that the online examination system was highly practical and had great potential for further extension.