The original sublevel and caving used in Zhenyuan Gold Mine for the extraction of the ore bodies whose thickness is less than 6 m is faced with the problems of low mining capacity,complex technology and high cost.Based on the technical conditions for the ore body extraction,Zhenyuan Gold Mine puts forward the efficient mining technology scheme of the small sublevel mining method with mechanized cross access and carries out field industrial test.The results show that this scheme will solve the problem mining ore body with the thickness less than 6 m,the technical indicators are good.The mining loss rate and the ore dilution rate are 14.9 % and 9.8 % respectively.The scheme is worth promotion.