Abstract: The course "Gemstone Identification Instrument" is the main course of gemstone material and technology specialty. However, the traditional teaching methods and means are somewhat backward nowadays. Combining with the advanced teaching ideas and practical teaching experience at home and abroad, this paper puts forward some measures to improve the teaching quality of the course, such as adopting the teaching method of flipping classroom, introducing advanced micro-digital interactive system, reforming the arrangement of theoretical and practical courses, optimizing the practice specimens and improving the examination methods, and fully mobilizing the learning enthusiasm and creativity of the students. The reform and practice of the practical problems in the course "Gemstone Identification Instrument" aims to improve the teaching quality and students' learning efficiency of the course, and provides reference and basis for the teaching reform of the other similar professional courses.