With the advent of the 5G era of digital smart city, “UAV + Application” is booming, and there is more and more demand for UAV remote sensing technology. How to cultivate high-tech application talents of UAV has become the primary problem to be solved in the development process of UAV. Based on WebGL technology, this paper combines virtual reality and panoramic technology, and adopts lightweight B/S architecture to develop an open platform for virtual simulation teaching that integrates online display, teaching, practical training, assessment, communication and management of UAV. The platform realizes the “three-dimensional teaching material, teaching platform, virtual exhibition hall” of the trinity teaching mode. Students can log in through the account to carry out theoretical learning, flight control operation learning and other interfaces, which can meet the training needs of high-tech application talents of UAV and strengthen students' understanding of theory and practice, simulation training has the advantages of repeated practice, without being limited by the space and time, and solve the problems of low interest, poor scalability and high cost of traditional UAV training.