Disclosed is a Ganoderma Lucidum strain suitable for large-scale liquid fermentation, named as Ganoderma Lucidum G2, deposited with China General Microbiological Culture Collection Center under the accession number CGMCC No. 3982 on Jul. 20, 2010, and a method of mutation breeding the same and use of the strain. The Ganoderma Lucidum strain which belongs to Ganodermataceae, genus Ganoderma, species red Ganoderma Lucidum is obtained by artificial mutagenizing and breeding. The production of mycelia using the Ganoderma Lucidum strain G2 is 80˜120 times higher as compared with the production of mycelia using wild-type naïve Ganoderma Lucidum strain. The mycelia produced using the Ganoderma Lucidum strain G2 have higher contents of main pharmaceutical ingredients. The Ganoderma Lucidum strain suitable for large-scale liquid fermentation can be used for manufacturing oral solution or beverage comprising Ganoderma mycelia or extracts of Ganoderma mycelia as main active ingredient.