The invention relates to a nano carbon organic fertilizer which is composed of urea, ammonium sulfate, human hair, paligorskite, an aminosilane-epoxy silane-sulfhydryl silane mixed solution, a mixture of a zinc fertilizer and a copper fertilizer in a weight ratio of 1:1, ferrous sulfate, rhizobia, Azotobacter chroococcum, nano carbon, Curculigo orchioides, goldenlarch bark, kuh-seng, ligninase, plant ash, catalase and rare earth compound in proper weight ratio; the Si mole ratio in the aminosilane, epoxy group silane and sulfhydryl silane in the mixed solution is 1:1:0.5; and the concentration of the mixed solution is 1.5-1.8%. The acid is utilized to hydrolyze the human hair to generate the amino acids, and the secondary and minor elements are chelated, thereby being beneficial to effective utilization of the secondary and minor elements; the nano carbon organic fertilizer is suitable for wheat, rice, corn, soybeans, rapes and other crops, and can enhance the cold resistance, drought resistance, and disease and insect resistance; and when being used on cotton and hemp crops, the nano carbon organic fertilizer can enhance the tensile force and strength of fibers and obviously improve the yield and quality.