The invention discloses a substance extraction method. The substance extraction method comprises the following steps: S1, heating a raw material to be extracted and water in a first vessel S2, transferring a solution in the first vessel to a second vessel S3, transferring a solution in the second vessel to a first vessel, and conducting the step S1 again. Through the adoption of the substance extraction method, not only can the concentration of a substance to be extracted be ensured, but also damage to the substance to be extracted due to long-time heating can be avoided, the efficiency of substance extraction can be further improved, and the extraction time can be saved.
