NOVELTY - Preparation of Hericium erinaceus cultivation material involves taking wood, cottonseed hull, corn cob, wheat bran, mushroom stem, potassium dihydrogen phosphate, calcium superphosphate and calcium carbonate, adding mushroom particles with 20-30 times the weight of water, soaking, mixing with wood, cottonseed hulls and corn cob, piling, inserting stick into the heap, covering with grass to carry out fermentation, turning the material once, adding calcium carbonate for first turning, calcium superphosphate and potassium dihydrogen phosphate for second turning and culturing.    USE - Method for preparing Hericium erinaceus cultivation material (claimed).    ADVANTAGE - The product contains variety of biologically active substances which promotes growth and provides strong antibacterial capacity of mycelium Hericium erinaceus. The method is labor-saving, cost-saving and environment-friendly.    DETAILED DESCRIPTION - Preparation of Hericium erinaceus cultivation material comprises:(1) taking 32-38 wt.% wood, 26-34 wt.% cottonseed hull, 10 wt.% corn cob, 20 wt.% wheat bran, 3-4 wt.% mushroom stem, 0.1 wt.% potassium dihydrogen phosphate, 0.4 wt.% calcium superphosphate and 1 wt.% calcium carbonate;(2) adding mushroom particles with 20-30 times the weight of water, soaking at room temperature for 18-24 hours, mixing with wood, cottonseed hulls and corn cob, piling into 1.0-1. 2 m high and 2-3 m wide where each heap of materials has dry weight of 300-500 kg, inserting stick into the heap with diameter of 10-15 cm where stomatal density is 1/m3 and covering with grass to carry out fermentation;(3) turning the material once the temperature reaches 60 degrees C for 24 hours, adding calcium carbonate for first turning, calcium superphosphate and potassium dihydrogen phosphate for second turning and wheat bran for last turning process where turning of material is done for 3-4 times (5-6 days) and terminating fermentation until cultivation material has moisture content of 63-65%; and(4) cooling, placing into 17 cm by 35 cm by 0.004 cm polypropylene bags, inoculating, adding strains, placing in the dark room, controlling temperature at 20-22 degrees C and humidity to 60-75%, culturing for 28-30 days and applying fruiting management. The wood is of the same size of broadleaf hardwood. The corn cob is obtained by dried and crushed corn cob. The mushroom stems are dried and crushed particles obtained from leftover mushrooms.