With the increasing attention of people to healthy diet, the cultivation technology of selenium-rich rice, as an important agricultural production method, has attracted much attention and research. Selenium is an essential trace element, which has important biological functions and is of great significance to human health. By optimizing the soil environment and improving the planting methods, the cultivation technology of selenium-rich rice can make rice absorb selenium in the soil and increase the selenium content of rice, which provides an effective selenium supplement method for people. Firstly, the nutritional value of selenium-rich rice was analyzed. Secondly, the cultivation technology of selenium-rich rice was explored, including the selection of planting site, seed selection and treatment, and timely sowing. This paper aims to provide reference for researchers and agricultural producers in related fields, promote the further development and promotion of Se-enriched rice technology, and provide people with safer and healthier agricultural products and diet choices.