Ethanol precipitation is a most popular purification technique used in preparing TCM oral solution and injection.This paper analyzes the technical features and current status of equipment used in ethanol precipitation. Authors have sorted out the problems of traditional ethanol precipitation, including long production cycle, high cost, heavy loss of effective elements, and low control capability,along with some strategic solutions,including strengthening the study of micro mechanism and migration of chemical substances,raising the control capability of precipitation technique, realizing the precision control and continuous operation of the entire precipitation process,and using advanced techniques to increase efficiency and save energy.