Abstract: After analyzing the mechanism of pilling of soybean protein fiber fabric and the factors affecting it,a new method for improving the pilling tendency is put forward,which involves blending the low melting point fiber with soybean protein fiber at different proportions and heat treatment of the blended fabric.After treatment,the pilling property and hand feeling of the blended fabric are tested.The experiment results show that when the content of low melting point fiber is 10% and heat treating is performed at(112 ℃) for 5 minutes,the blended fabric has the best pilling resistant property with little influence on fabric handle.