Based on the stockpiling and discharging manners and structural parameters of the heap leaching yard of Zijinshan Gold-Copper Mine,the paper analyzed the prerequisite and characteristics of the debris flow formation in the heap leaching yard,introduced the technical measures to prevent debris flow including water interception,discharge engineering,interception engineering,revegetation,slope protection and in-time monitoring.By taking effective measures,geological disasters of debris flow are greatly avoided,ensuring the stability and safety of the heap leaching yard of Zijinshan Gold-Copper Mine and the safe production of the mine.