This course mainly teaches the pot seedling vegetable transplanter, 4LB150II Head-feed Combine Harvester and High-Efficiency Electrostatic Spraying . independently developed by our laboratory, and focuses on the advantages and performance of these equipment. The design and application of these instruments have positive significance for improving the field management ability and reducing the waste of crops and related items, and provide important intellectual support and practical application value for the healthy and sustainable development of China, a big vegetable country.