The invention relates to the field of materials and environments, and discloses a noble metal extracting solution, a preparation method and an application thereof. The noble metal extracting solutioncomprises a solvent, an oxidizing agent, a metal salt and an absorbent; the solvent is a solution containing a cyano group or a sulfur cyano group; the oxidant is a liquid or a solid containing an oxygen-containing group; the metal salt is a transition metal salt containing group VIII and group IB elements; the absorbent is a porous adsorption material; the mass ratio of the metal salt, the oxidizing agent, the solvent and the absorbent is 0.01-0.2 : 0.02-2 : 20-500 : 10-200; the pH value of the noble metal extracting solution is 7; the noble metal is selected from gold, silver, platinum, palladium, rhodium, ruthenium, iridium and copper. The noble metal extracting solution is wide in source and low in cost; and high temperature and high pressure are not needed, the reaction is simple, thedevice requirement is low, and the method can be applied widely.