Abstract: An intelligent monitor for precision seeder is developed by using single chip microprocessor technique. Being used with large scale wide breadth precision seeder, the instrument can nonitor the whole process of seeding work. When the seeds stop to drop in the seeder, the instrument can make a sound to alarm and indicate the corresponding misseeding travel through screen, at the same time, it can also offer real time work guidance for seeding work. In the recent several years, large-scale practical application indicates that the monitor has higher reliability for monitoring and measuring precision.