The appropriate medium and culture conditions of Pleurotus corucopiae liquid spawn were studied in this paper. The results showed that the optimal composition of the medium were as follows, mannitol 3%, yeast powder 1.0%, corn powder 1.0%,KH2PO4 0. 2%, MgSO4·7H2O 0.05%;and the optimal culture conditions were as follows.shaking rate 150 r·min^-1, initial pH value 6, volume 90 mL/250 mL,culture temperature 26℃ and culture time 6 d. Compared with the traditional solid spawn,the liqui...