As one of the main food crops in China,corn produces a large amount of high-quality grain and inevitably produces by-products such as com straw.At present,the actual results of the processing and utilization of corn straw in China are not ideal.The main treatment methods are still burning and stacking in the open air.Only a small part of the corn straw has been fully utilized.This situation has led to the relatively low utilization rate of corn straw in China.This article reviews the current status of com straw utilization in energy utilization,livestock breeding,soil improvement,industrial raw materials,biochemicals,etc.,and puts forward some relevant solutions and suggestions,aiming to further promote the comprehensive utilization of com straw.for reference.