Rotary cutting valve with high-sealing-performance and long-service-life structure

The rotary cutting valve of the high-sealing-performance long-service-life structure comprises a valve head and a valve element assembly, the valve head is provided with a plurality of fluid channels penetrating through the outer end face and the inner end face of the valve head, and the valve element assembly comprises a sealing gasket, a stator and a rotor; a positioning groove is formed in the inner end face of the valve head, the sealing gasket is embedded in the positioning groove, a plurality of first through holes are formed in the sealing gasket, and the first through holes correspond to the fluid channels one to one. One face of the stator is tightly attached to the sealing gasket, a second through hole corresponding to the fluid channel is formed in the stator, the other face of the stator is tightly attached to the rotor, and the rotor is provided with two third through holes and a connecting groove communicated with the two third through holes. The connecting groove enables the two fluid channels