To develop efficient enzyme preparation used in ramie degumming, the efficient strains used in ramie bio-degumming subjected to liquid state fermentation, which were screened and accessed. The characteristic parameters of extracellular enzymes including pectinase activity, mannanase activity and protein content, etc. were further determined, and the comprehensive indexes of the ramie degumming system, such as fiber morphology, mass loss rate, residual gum rate, etc., were analyzed. The results show that pectinase activities of the group N and the group G were 61.79 IU/mL and 13.69 IU/mL, respe...