The invention provides a dye for a comprehensive color repairing process of double-faced leather. The dye comprises, by weight, 60-70 parts of penetrating agents, 5-25 parts of dye water, 1-2 parts ofcolor fixing agents and 10-20 parts of water. The invention further provides a comprehensive color repairing process of the double-faced leather. By the aid of the dye of a specific formula and the corresponding comprehensive color repairing process, according to dyed leather, particularly, the leather with large rough board discoloration, a dyed hair surface and an undyed leather board surface,the leather board surface is dyed, the color of the leather board surface is repaired and improved, coloring effects are greatly improved, a leather board is lubricating in hand feeling and high in oil feeling, color brightness and plumpness of fabric surface can be improved, and the fabric surface has comfortable silk feels. The comprehensive color repairing process is simple, easy to operate andless in sewage discharge, dyes are sufficiently absorbed, chemical materials are saved, and discharge of waste gas, wastewater and solid waste is reduced.