The invention relates to a method for efficiently electroless plating 925 silver, and relates to a method for obtaining a 925 silver coating with excellent corrosion resistance on the surface of a non-metallic material by adopting the electroless plating method. The invention aims to solve the problems of poor corrosion resistance, long surface treatment time and the like caused by current chemical plating pure silver. The method for efficiently electroless plating the 925 silver comprises the following steps that (1) an activating solution is prepared; (2) a 925 silver plating solution is prepared; (3) the non-metallic material is activated; and (4) the 925 silver is plated by spraying, and the 925 silver coating with the good corrosion resistance on the surface of the non-metallic material is efficiently obtained. According to the method for efficiently electroless plating 925 silver, the non-metal material with any shape can be treated, the non-metal material is efficiently made togenerate a mirror-bright appearance and keep the permanent color, and the production efficiency and the reliability of the electroless plating technology are improved.