NOVELTY - Biological selenium-enriched fertilizer, is claimed, where the fertilizer is produced by adding pig manure , chicken manure, rape seed cake, bean cake, sodium selenite, urea and potassium nitrate with cement, adding water, covering and sealing the tank for anaerobic fermentation, putting the fermentation liquid into tank, filtering the liquid to obtain selenium-containing fertilizer liquid a and b, and diluting the selenium-fertilizer solution of different concentrations by adding water to obtain a selenium-fertilizer containing liquids c, d, e, f and g.    USE - The biological selenium-enriched fertilizer is useful for producing wheat.    ADVANTAGE - The biological selenium-enriched fertilizer produces the wheat in an efficient and simple manner.    DETAILED DESCRIPTION - Biological selenium-enriched fertilizer, is claimed, where the fertilizer is produced by adding pig manure (30-50 kg), chicken manure (20- 40 kg), rape seed cake (10-30 kg), bean cake (10-30 kg), sodium selenite (5-10 kg), urea (2-4 kg) and potassium nitrate (1-3 kg) with cement into a fermentation tank, adding water (20-100 kg) into the tank, covering and sealing the tank for anaerobic fermentation for 30 days, putting the fermentation liquid into tank, filtering the liquid with 200 meshes to obtain selenium-containing fertilizer liquid a and a selenium-containing fertilizer liquid b, diluting the selenium yeast fertilizer solution of different concentrations by adding water to obtain a selenium- fertilizer containing liquid c having selenium content of 5-10 g/l, selenium-containing fertilizer solution d having selenium content of 10-20 g/l, selenium fertilizer solution e having selenium content of 20-30g/l, selenium fertilizer solution f having selenium content of 30-40g/l and selenium fertilizer solution g having selenium content of 40-45 g/l. An INDEPENDENT CLAIM is included for producing the fertilizer comprising selecting red wheat seeds, providing into a container, adding selenium-containing fertilizer solution C with the red wheat seeds in a plant culturing box and then culturing at a temperature of 25 plus minus 2 degrees C, soaking for 24 hours, planting fermentation residue (10-20 kg), spraying selenium-containing fertilizer solution e on wheat leaf surface, spraying the selenium-containing fertilizer solution f and the selenium fertilizer solution g to be mature to harvest a red wheat product.