The invention relates to a hypsizigus marmoreus strain Finc-B-5, and a culture method, a planting method and application thereof. The hypsizigus marmoreus strain is named as Finc-B-5, belongs to hypsizigus marmoreus and is collected in General Microorganism Center of China Microbiological Culture Collection Management Committee, which is located at No.3, No.1 yard, Beichen west road, Chaoyang district, Beijing. The collection number is CGMCC No.11203, and the collection date is August 13 of 2015. Compared with the prior art, the hypsizigus marmoreus strain Finc-B-5 has the advantages that yield per unit is high, culture and planting periods are short, raw material conversion rate and factory production efficiency are improved greatly, energy is saved, and consumption is reduced; preservation period is long, long-distance transportation is facilitated, shelf life is prolonged, and significance in commercial popularization is great; the shape characteristics are excellent, and product subpackage and sales are really benefited; the mouthfeel is good, and customer acceptability is high; in conclusion, the Finc-B-5 has excellent overall performance and broad market prospect.