The invention discloses a nano-carbon organic compound fertilizer, which consists of proper parts by weight of urea, potassium sulfate, hairs, palygorskite, dimethyl sulfoxide, a mixture consisting of a boron fertilizer and a zinc fertilizer in the weight ratio of 1:0.5, ferrous sulfate, nodule bacteria, azotobacter chroococcum, nano-carbon, curculigo orchioides, golden larch bark, light yellow sophora root, ligninase, plant ash, humic acid, sodium dodecyl benzene sulfonate, animal dung and powdery EDTA (Ethylene Diamine Tetraacetic Acid) manganese chelate. The nano-carbon organic compound fertilizer contributes to effective utilization of secondary and trace elements; the nano-carbon organic compound fertilizer is suitable for crops such as wheat, paddy rice, corn, soybean and oilseed rape, and the cold resistance, drought resistance and disease and insect resistance can be enhanced; when the nano-carbon organic compound fertilizer is applied to cotton and hemp crops, the tension and strength of fibers can be enhanced, the yield is increased remarkably, and the quality is improved remarkably.