Abstract: Cotton and silk were first blended according to various ratios,followed by combing and forming nonwoven web by hydroentangling method,and then the nonwoven web was impregnated in 4% gelatin solution,thus obtained a degradable nonwoven mulch film.The water permeability,moisture vapor transmission,degradability of the film were tested and characterized by using scanning electron microscope(SEM),Fourier transform infrared spectroscopy(FT-IR) and degrade efficiency.The performance difference before and after degradation of the film was analyzed.The preliminary results indicated that when compared with the conventional plastic mulching this nonwoven mulch film presents better physical property and degradability,and after degradation,it enriches the nitrogen content in the earth layers.