A method for accurately correcting the age of columbite-tantalite by using double-reference-material includes: using at least two kinds of columbite-tantalite with known ages as reference materials; determining the positive correlation between the lead-uranium ion ratio and the uranium ion ratio of the columbite-tantalite based on test results of a lead-uranium ion ratio ( 206 Pb + 238 U 16 ⁢ O + ) Cstd ⁢ 1 and a uranium ion ratio ( 238 U 16 ⁢ O 2 + 238 U 16 ⁢ O + ) Cstd ⁢ 1 of the reference material 1, correcting the correlation by reference material 2; calculating the lead-uranium mass ratio ( 206 Pb 238 U ) un of the columbite-tantalite sample to be tested by using the corrected correlation; finally, determining the uranium-lead age UPbtun of the columbite-tantalite sample to be tested based on the lead-uranium mass ratio ( 206 Pb 238 U ) un . The method is fast and reliable, and greatly increases the accuracy in calculating the age of columbite-tantalite, and the method represents the latest international test design and calibration method in this field, and is of great practical value.