This course, developed by the Nanjing Institute of Agricultural Mechanization—an institution under China’s Ministry of Agriculture and Rural Affairs— is designed to help farmers reduce losses and improve efficiency during mechanical corn harvesting. It introduces best practices for mechanized harvesting, including selecting appropriate harvester based on grain moisture levels and conducting thorough pre-harvest machine maintenance and field assessments. The course also explains how to determine optimal harvest timing using crop maturity indicators and emphasize the importance of trial runs to fine-tune machine settings, such as roller gaps and threshing speeds. In addition, it outlines efficient operating strategies—such as adjusting travel speed, optimizing driving routes, and adapting techniques for challenging conditions like lodged corn—to minimize grain loss. Overall, the course highlights standardized and adaptive operating methods that help maximize yield quality across diverse farming environments.