Method for testing liquid water content of plant

The invention provides a method for testing the liquid water content of a plant, wherein, the method is characterized in that gum turpentine is taken as solvent; steam which is generated by heating up a materiel and the solvent to be boiled enters into a condensation pipe; the stem is condensed to reflow into a receiving pipe; the step of heating is stopped after the reflow liquid in the receiving pipe is not increased; and the liquid water content of the plant can be calculated according to a prior equation after testing the volume of the reflow liquid. When testing the moisture of the plate with the invention, the solvent is nontoxic and harmless; the cheap gum turpentine is no harm to human health, is convenient to recycle, can greatly reduce the cost of the solvent during batch production, reduces unnecessary waste, and saves resource; and the method has high testing precision, exact liquid water content, and is suitable for testing the liquid water content of various plates, dried fruits, etc.