A method for dyeing mink fur with an oxidation dye is characterized in that mink fur is dyed by water bath in a fur dyeing drum, a fur-liquid mass ratio is 1:10, specific process steps include: degreasing, chrome dyeing, dyeing and tanning, and chrome dye Gx free of any heavy metal and pollutant components replaces potassium dichromate used in the conventional process. The potassium dichromate in the existing chrome dyeing process is replaced with the chrome dye Gx free of any heavy metal and pollutant components, a step of treating potassium dichromate waste liquid is not required, dyeing waste liquid is free of potassium dichromate, and the method has the advantages of processing simplicity, low operation cost, energy efficiency and environmental friendliness.