Abstract: Three kinds of edible composite films were used to preserve the Hangwan pomelo petal through coating method, and the parameters of pomelo petal including weight loss rate, soluble solids, organic acids, vitamin C,ethanol contents, granulation index, hardness and total bacterial amounts were studied during storage at room temperature using untreated pomelo petal as control. Results showed that, compared with the control group, coating preservation could reduce the water loss of pomelo petal during shelf life, inhibit the decrease of VC content,maintain high contents of soluble solids and organic acids, delay granulation and prolong shelf life. Among them,the glucomannan composite film presented superior preservation effects.