To obtain effective cellulose-decomposing fungi,sodium carboxymethyl cellulose was used as media to isolate and screen.Twenty-three thermophilic cellulolytic fungi strains were isolated from hot spring,indicated by large and distinct red circles around the colonies in Congo red agar medium.Twelve strains of fungi which had better capacity to decompose cellulose and hemicellulose were obtained through determinations of enzyme activity using liquid fermentation.Seven thermophilic fungi strains were identified...