Reference electrode membrane group

The utility model provides a reference electrode membrane module which comprises a ceramic core, an ion permeable membrane and a membrane pressing seat, the ceramic core penetrates through the membrane pressing seat along the axial direction, and the ion permeable membrane covers the outer side of one end of the membrane pressing seat and is connected with the membrane pressing seat in a sealing manner. According to the technical scheme, the ceramic core is arranged in the membrane pressing seat, and the ion permeable membrane is arranged on one side of the membrane pressing seat, so that the advantages of the ceramic core and the ion permeable membrane are combined, the defect that bubbles are generated in an inner hole of the membrane pressing seat in the storage and use processes of an electrode is overcome, and the service life of the electrode is prolonged. And meanwhile, the pressure of the filled liquid does not directly act on the ion permeable membrane, so that the service life of the membrane group