Trichoderma reesei strain capable of producing cellulase with high yield through space mutation

The invention provides a trichoderma reesei strain capable of producing cellulase with high yield through space mutation, belonging to the technical field of microorganism mutation. According to the invention, trichoderma reesei Rw-X1 strain is preferably selected to be carried by Shenzhou IX to be subjected to space mutation and trichoderma reesei TG-C521 strain capable of producing cellulase with high yield can be carefully screened and cultured; the strain is collected in China General Microbiological Culture Collection Center on August 25, 2014 and has a collection Number of CGMCCNo.9537. According to the invention, the genetic character of the strain is changed by virtue of a special environment so that a strain with normal distributed mutation and stable genetic transformation can be screened out preferably; and the strain is used for producing cellulose and the filter paper activity of the strain is 25.83-34.49% higher than that of the trichoderma reesei Rw-X1 strain; the strain is friendly to the environment and is free of pollution, thus having a wide industrial application prospect.