Processing method of Rhizoma Pinellinae Praeparata and Rhizoma Pinellinae Praeparata

The invention provides a processing method of Rhizoma Pinellinae Praeparata and Rhizoma Pinellinae Praeparata, belonging to the field of processing of traditional Chinese medicines. The processing method of Rhizoma Pinellinae Praeparata comprises the following steps: putting raw Pinellia tuberifera in a closed vessel, lowering the pressure in the closed vessel to -0.02 to -0.04 MPa; and adding water into the closed vessel until the raw Pinellia tuberifera is immersed in the water, pressurizing the closed vessel to control the pressure in the closed vessel at 0.18-0.30 MPa, soaking the raw Pinellia tuberifera for 4-6 hours, and filtering. The method provided by the invention is capable of greatly shortening the soaking time of Pinellia tuberifera and enhancing the production efficiency, and avoids the loss of effective components in the Pinellia tuberifera and the phenomenon of unqualified ash content and extracts, thereby enhancing the Rhizoma Pinellinae Praeparata decoction piece quality and application safe