Traditional stope bottom structure adopted in Jinchangyu Gold Mine incurred severe secondary ore loss in the late stage of large amounts of ore drawing.Therefore,the chute type gathering roadway is optimized and renovated.2 renovation plans are put forward,compared and applied on site.The selected final plan is:the original bottom structure parameters are kept,the gathering chute on the non-rake side is expanded from the rake roadway roof with certain upward inclining angles.Onsite results comparison shows that the optimized plan leads to dynamite consumption reduction in secondary crushing by 7 kg/shift,ore loss rate in the ore drawing process decrease by 2 percentage points,ore dilution rate decrease by 5 percentage points.The application effect is good.The study can be used as reference by similar mines.