Abstract: In the past few years，the amount of straw burning in rural China has increased day by day，and it has become the main source of pollution for surrounding air.Straw balers have played an important role in improving environmental pollution caused by burning straw in rural areas and improving utilization of straw resources.Research status and development trend of various straw balers at home and abroad were summarized and expounded ，aiming at providing reference for further research and development of straw balers.