The invention discloses an edible compound coating antistaling agent for drupes. The edible compound coating antistaling agent belongs to the field of fresh preservation and treatment of fruits and vegetables and is characterized in that chitosan and other auxiliaries are dissolved in a water solution prepared in an acetic acid solution with low concentration. According to the invention, glycerylmonostearate and Tween 80 are added in chitosan coating, thus the connecting strength of antibacterial components is enhanced and, the toughness and air permeability of the coating are improved; and meanwhile, other components in the fresh preservation agent, such as sodium ascorbate, sodium chloride, and the like, have greater bacterial resistance and fresh preservation effects. The edible compound agent, after being applied to coating the drupes, can form a layer of shiny transparent film on the surface of each drupe and achieves the functions of preserving water, reducing bacterial contamination, preventing the growth of microorganisms, resisting oxidation and inhibiting the fruit respiration. The edible compound agent can be widely applied in the storage and fresh preservation of the drupes and achieves greater fresh preservation effects than other methods. The edible compound agent is convenient to prepare and use, requires small equipment investment, occupies a small operation area, and is suitable for industrial batch production.