Abstract: The study evaluated the changes of the physical and chemical properties of Premna microphylla Turcz leaves powder after freezing drying, hot-air-drying and sun-drying respectively. The results show that the colors are significantly different (P < 0.05) under different drying methods. The hot-air-drying group has the best brightness and greenness. The difference of odor between the dried leaves and the undried leaves is significant (the total Variance:99.62%). It can be found that drying could eliminate the odor. The bulk density, water absorption index and oil holding capacity of different drying groups are significantly different (P < 0.05) under different drying methods.The hot-air-drying group has the smallest bulk density and the largest water absorption index, which are 0.32 g/mL and 28.14 g/g.The sun-drying group has the best oil holding capacity which is 1.78 g/g.The emulsion property and pectin content of different drying groups are significantly different (P < 0.05).The emulsion activity and emulsion stability of the freeze-drying group are the best, which are 97.68% and 90.04%, respectively. The pectin content is also the highest, at 25.77%. The results of this study will provide a reference for the drying and processing of Premna microphylla Turcz leaves.