This is the first course for master students who like to major in occupational health. The principles, case studies and practice of occupational health will be taught in the class. Key medical, physical, chemical and engineering principles will be reviewed to provide students with sound scientific foundation of learning occupational health. Key conventional and new occupational health issues, both of domestically and internationally, will be taught in the class. The course instruction method will be combination of lecture, workshop, discussion, practice and field trips. Guest lectures by distinguished scholars will be arranged to enrich students’ knowledge about specific risk topics.