Abstract: A self-propelled Caragana microphylla combined harvester was introduced.It could complete operations of stubble cutting，conveying，crushing and packing of Caragana microphylla.Evaluation index of cross section quality of Caragana microphylla was put forward and major factors that affect quality of cross section were studied.It could realize aim to standardize operation of stubble on Caragana microphylla，promote growth，and accelerate renewal of Caragana microphylla through field experiment and performance test of harvester.It could provide reference for R&D and application of self-propelled Caragana microphylla combined harvester.