Rice direct seeding technology by unmanned aerial vehicle（UAV） is a new seeding technology with the rapid development of UAV industry in recent years, which uses agricultural UAV as the operating platform to finish rice seeding tasks. It has the characteristics of high operation efficiency, low work intensity, low use cost and high degree of intelligence. Besides, it can be compatible with field information acquisition and fertilization and pesticide scattering tasks, and can be interconnected with other intelligent “unmanned” agricultural devices to achieve intelligent farm production. Rice direct seeding technology system by UAV is an important supplement to the ground unmanned mechanized system of rice seeding, which provides a strong power for the “unmanned” rice planting in China. This paper briefly discusses the “unmanned” cultivation technology system for rice with high quality and yield in the future from the aspect of unmanned aerial seeding, and puts forward the prospect of this system.