The invention discloses bioorganic fertilizer for selenium-enriched camellia oleifera. The bioorganic fertilizer is characterized by being prepared by, by weight, 30-40 parts of waste tea oil resides, 20-25 parts of tea seed cake, 15-20 parts of soybean hull, 10-20 parts of straw ash, 5-15 parts of bean pulp ash, 15-20 parts of biological charcoal, 13-18 parts of vinegar residues, 20-30 parts of chicken and duck manure, 10-15 parts of plant ash, 15-23 parts of pond sludge, 10-15 parts of raw bone meal, 5-10 parts of wood vinegar, 3-7 parts of fermentation agent, 3-8 parts of biological bacteria, 5-10 parts of pine needles, 1-2 parts of selenium ore powder, 1-3 parts of sodium selenite, 1-2 parts of selenium fermentation liquor extract and 1-3 parts of trace elements. The bioorganic fertilizer has the advantages that the bioorganic fertilizer is comprehensive in nutrition and capable of strongly activating soil, evidently increasing soil selenium content, solving the soil hardening problem, increasing fertility and the like, and the biological fertilizer is ideal fertilizer for increasing soil organic matter and producing the green camellia oleifera; the waste tea oil residues and the tea seed cake are utilized, waste oil is utilized sufficiently, the waste oil residues are fertilized to produce the bioorganic fertilizer, and environments are protected.