Shelling is the only important processing step from production to utilization of peanuts. The shelling machine is the most important core equipment of peanut shelling processing operation,which both mainly determines the peanut shelling efficiency and the processing quality such as the degree of loss and damage of peanut kernels. Even though the peanut production ranks first in the world and shelling technology is widely used,China’s peanut shelling technology is far poorer than the United States,which has been seriously restricting the development of peanut food processing industry and the export of peanuts as well as their products in China. In order to explore,analyze and use the experience of the American peanut shelling technology and development for reference,based on onsite observation,public survey of documents and the systematical analysis,the classification and review of the peanut shelling technology of the USA significantly different from China in aspects including the industrialization,and the characteristics of the large scale were conducted. The advanced equipment and wellequipped assembling were summarized. The development history and research status of American peanut shellers were analyzed deeply. The scraping shelling principle and relevant sheller structural type and development of shelling parts were dissected. The technical characteristics of lowspeed,multiroller independent driving and double cleaning device of the latest peanut shelling machine in the United States were pointed out. The studies on shelling factors and the experience in promoting the development of peanut shelling technology of the USA were summed up. It will provide important reference for studying and developing peanut shelling technology in China.