Crop science,as a relatively systematic discipline,was established,and gradually developed and refined from the mid-19th century to the early 20th century.Crop science is one of the core disciplines within agricultural science,encompassing crop germplasm resources,crop genetics and breeding,crop cultivation,and tillage.Crop science plays a pivotal role in ensuring national food security,ecological security,agricultural product supply,and sustainable development of modern agriculture.The present situation and existing problems in the development of crop science in China and Ningxia are analyzed,and the key scientific problems for its future development are discussed.