The invention provides a preparation method of a silver product with a colored surface. The preparation method comprises the following steps: removing grease from the surface of a silver product, and then making a coloring agent react with the surface of the silver product so as to obtain a silver product with a colored surface. The preparation method comprises the following specific steps: mixing sodium hyposulfite and lead acetate to obtain a mixed solution taken as the coloring agent; immersing a silver product in the coloring agent, soaking, making the coloring agent carry out reactions with the silver of the silver product surface, and keeping on carrying out the reactions less than 6 minutes, after the reactions the surface of the silver product turns gold, and finally a silver product with a gold surface is obtained. The obtained gold silver product has a stable property in the air, and will not be oxidized or faded.