Method for extracting corosolic acid from plant

The invention discloses a method for extracting corosolic acid from plants, which extracts and separates out high-purity corosolic acid by taking the plants containing the corosolic acid as raw materials, and adopting the combination of the processes of extraction by a water-containing alcobolic solution, two times of alcohol deposition and macroporous resin adsorption and the like. The method has mature techniques and simple processes, thus being suitable for mass production.