Abstract: Seed vigor comprehensively reflects the comprehensive physiological characteristics of seed quality and is an important index to evaluate the quality of seeds. High vigor seeds have obvious potential advantages in crop growth, crop yield and yield quality. Measuring seed vigor is of great significance to the development of modern agricultural production. An intelligent device for measuring seed vitality is designed. The device soaks the seeds in clean water for a certain time under constant temperature, and predicts the seed vitality by measuring the conductivity of the soaking solution. The test results showed that the intelligent device is not only easy to operate and can realize continuous measurement, but also has a high degree of intelligence, strong anti-interference ability,high measurement accuracy and wide measurement range. It can fully meet the needs of various tasks for determining seed vitality,and has good practicability and broad development prospects.