The invention discloses a polyamide filter material. The filter material adopts a hollow cylindrical structure produced through melt-blowing process treatment of a polyamide material and adhesion and winding of blown superfine fibers; the filter material adopts a loose structure and filter holes with different hole diameters are formed; the hole diameters of the filter holes sequentially and gradually decrease from the outer layer of the cylindrical structure to the inner layer. The characteristic that the polyamide material is resistant to corrosion by multiple chemical raw materials is used, melt-blowing process treatment is performed, the structure identical with that of a common polypropylene filter element is obtained, on the premise that oil and alcohol corrosion resistance of the material is guaranteed, the filter material has better filter precision, pollutant-holding capacity and circulation drag parameters, and the filter requirement of oils, chemical waste liquor and chemical waste gas is met.