The invention discloses a method for removing platinum and palladium out of a silver electrolyte and concentrating platinum and palladium. The technology of adopting cocoanut charcoal for adsorbing, desorbing and concentrating platinum and palladium in the silver electrolyte is adopted. The method comprises the operation steps that firstly, the commercial-grade cocoanut charcoal with the particle size ranging from 6 mesh to 20 mesh is taken and added to the electrolyte, vibration is carried out for 1 h-2 h, the cocoanut charcoal loaded with platinum and palladium is filtered out, and the adding amount of the cocoanut charcoal ranges from 5 g/L to 50 g/L; secondly, nitric acid is used as a desorption agent, the loaded cocoanut charcoal is added to the desorption agent, a reaction is carried out for 1 h-2 h at the temperature ranging from 35 DEG C to 50 DEG C, the cocoanut charcoal is filtered out, and the concentration of nitric acid ranges from 3 mol/L to 6 mol/L; and thirdly, the first step and the second step are repeated till the cocoanut charcoal loses activity, the cocoanut charcoal which cannot continue to be used returns to an anode mud smelting furnace as an anode mud treatment auxiliary material, and meanwhile precious metal left in the cocoanut charcoal is recycled. The method has the beneficial effects that operation is convenient, the platinum and palladium recovery rate is high, the treatment cost is low, and environmental pollution is low.