Abstract: The research was about the fresh-keeping to cherry with a compound of tea tree oil, chitosan, pomegranate and mulberry extract,based on inhibiting the spoilage microorganisms,controlling the fruit respiration and improving the antioxidant ability of cherry.An optimal free-keeping liquid was obtained with mass ratio of chitosan,mulberry and pomegranate extract 12:3:5,in which the tea tree oil was confined to 1 mg/L.It could not only reduce the weight loss and decay of cherry,but also maintain higher vitamin C and titratable acids content of cherry, extend its shelf-life about 5 d. Therefore, the compound containing tea tree oil and multiple natural products could effectively preserve the fruit nutritive value and special flavor,and had a promising application of replacing the conventional preservation methods to cherry.