The invention relates to the field of glass preparation, and discloses a method for reducing the glass stones in a precious metal glass material channel. The method comprises the step of pre-treatingthe precious metal glass material channel connected into a forming process, wherein the pretreatment comprises the following steps of S1, at a temperature rising stage of the precious metal glass material channel, introducing an inert gas from a conveying opening; S2, after heating is completed, introducing the molten glass; S3, cooling a feeding section of the precious metal glass material channel and then discharging, wherein the conveying amount of the inert gas is 10-20 L/h relative to one cubic volume of the precious metal glass material channel. By adopting the method disclosed by the invention, the volatilization amount of precious metals in the precious metal glass material channel can be reduced from the source, and the precious metals can be brought out of a production system even if the volatilization occurs, so that the occurrence of the glass stones is reduced, and the quality and yield of the substrate glass are improved.