Abstract: Chemical retting causes serious environmental pollution,and enzymatic retting has the drawback of poor yield.In order to overcome these disadvantages,hemp retting by the combined action of high temperature boiling and enzymes was researched.Hemp retting was performed by high temperature boiling,followed by enzymatic retting.And the effect of three kinds of enzymes on the composition and breaking strength of hemp was discussed.The morphology and composition of hemp after high temperature boiling-enzyme treatment were characterized by SEM and FTIR.The results show that pectase is suitable for hemp retting following high temperature boiling retting.Hemp retting by high temperature boiling,followed by pectase treatment can remove hemicellulose and lignin by 83.3% and 79.2%,respectively.