Abstract: The production efficiency is poor,the production management is difficult and the safety risks are high in the process of ordinary upward horizontal slicing and filling mining applied in Hatu Gold Mine.Based on ore body mining technical conditions,optimized selection of mining methods is carried out.Finally,mechanized upward horizontal slicing and filling mining method is selected and its on-site industrial application is carried out.The study in detail introduced the stope structure parameters,cutting preparation,stoping process and stope filling flowsheet of the mining method.The production practice shows that the mechanized upward horizontal slicing and filling mining method improves production efficiency.The comprehensive production capacity of the panel reaches 300 t/d,mining loss rate is 6 %,and ore dilution rate is 5 %.Safety management level improves greatly,achieving non-pillar continuous mining of ore bodies.The study can be used as reference by similar mines.