The invention discloses organic fertilizer capable of improving quality and yield of pepper. The organic fertilizer capable of improving the quality and the yield of the pepper comprises the following raw materials in parts by weight: 12 to 20 parts of waste tealeaf residues, 20 to 35 parts of waste beer fermenting liquor, 15 to 20 parts of eggplant peel, 9 to 12 parts of mulberry leaf, 10 to 12 parts of rotting mushroom, 8 to 14 parts of araliaceae acanthopanax trifoliatus, 8 to 14 parts of waste fish scales, 2 to 4 parts of ammonium phosphate, and 2 to 4 parts of magnesium sulfate. The organic fertilizer has the advantages that the formula is reasonable; under the synergistic action of all components, the utilization rate of the organic fertilizer is greatly improved, the yield of the pepper is increased, the problem of eutrophy or nutrient deficiency symptom of crops is effectively solved, the quality of the pepper is greatly improved, the problem of pollution to water body due to losing of fertilizer is effectively solved, the soil is improved, the resource is saved, and the cost is reduced; the preparation method is simple, and the organic fertilizer is suitable for scaled industrial production requirements.