The invention discloses a coated slow-release base fertilizer for improving the yield of pomegranates. The coated slow-release base fertilizer is composed of basic material particles and coating layers which coat the basic material particles. The basic material particles are prepared from, by weight, chicken manure, cakes and meal, humus, biogas slurry, traditional Chinese medicine residues, pimacol, polypeptide urea, ammonium sulfate-nitrate, a rare earth phosphate fertilizer, potassium sulphate, potassium chloride, sodium selenite, silica powder, zinc sulfate, a copper fertilizer, a manganese fertilizer, a molybdate fertilizer, sodium alginate, polyvinylpyrrolidone, a compound microorganism inoculant, oligosaccharins and corn cob residues. According to the coated slow-release base fertilizer for improving the yield of the pomegranates, nutrients are comprehensive, the slow-release performance is high, the nutrient releasing speed accords with the fertilizer-required rhythm of the pomegranates, the fertilizer utilization rate is high, improvement of the yield and quality of the pomegranates is facilitated, and the soil environment can be effectively improved.