Intelligent speed-dependent variable control technology, as an important module for the intelligentization of agricultural machinery equipment, this paper reviews the current research status of intelligent speed-dependent variable control technology at home and abroad. By using motor drive to improve the insufficiency of mechanical transmission mainly based on ground wheel drive, the intelligent transformation of domestic agricultural machinery is achieved. Domestic scholars have conducted research in speed-dependent control, which has improved the seed scheduling accuracy of agricultural machinery. This paper mainly discusses the development and application of domestic intelligent speed-dependent variable control technology and looks forward to its future development.