Southern Fujian is an economically developed area in Fujian Province. Its main food crop is double-season rice. Quanzhen 10 and Jiafuzhan are the main conventional early rice varieties popularized in southern Fujian. Limited to market price and yield bottlenecks, early rice planting benefits are low. Nan'an Seed Management Station introduced a new high-quality conventional early rice variety Quanzhen 12 that conforms to local eating habits, economic value and relatively high yield, and carried out green cultivation experiments and high-yield cultivation experiments in Yingdu Town and Dock Town respectively. The high-yield and high-efficiency cultivation techniques of this variety in Nan'an City were explored, and a set of targeted and practical high-yield cultivation techniques were summarized.