Abstract: At present, the traditional experimental teaching methods have the following problems: lack of teaching resources, insufficient integration of experimental and theoretical courses, poor integration of teaching media and experimental teaching, and it is urgent to deepen the reform of experimental teaching methods. While virtual reality (VR) technology + cloud platform can effectively solve the above problems. Moreover, few universities at home and abroad have explored the experimental teaching mode of agricultural and water conservancy engineering specialty based on VR+ cloud platform. So this paper explores the experimental teaching reform of agricultural and water conservancy engineering courses based on VR+ cloud platform, puts forward the educational concept of VR+ learning motivation and incentive, and reshaps the model of teaching and learning. By combining the experimental course with the theoretical course, and the virtual simulation experiment with the real experiment, the teaching content and means are enriched, and the time and space limit of experimental teaching is exceeded. Diversified assessment methods are adopted to stimulate teachers' teaching vitality, enrich experimental resources, improve students' learning motivation, and help build first-class courses.

Key words: VR + cloud platform, VR + learning motivation, Agricultural water conservancy engineering