The invention relates to a press sealing exhaust method for a gas discharge lamp. The gas discharge lamp comprises a quartz glass tube and filament components. The method includes the following steps that an exhaust tube which is softened through heating stretches into the quartz glass tube from the lower end of the quartz glass tube; protective gas is fed into the upper end of the quartz glass tube; the first filament component is subjected to fusion press sealing, after press sealing, the upper portion and the lower portion of the quartz glass tube are exchanged, and the lower end of the quartz glass tube is subjected to fusion press sealing; light-emitting substances are fed into the glass tube through the exhaust tube, then, exhausting vacuumization is performed on an inner cavity of the glass tube through the exhaust tube, and then needed working gas is injected into the glass tube; finally, the press sealing joint of the exhaust tube is fused through the front of a flame, and the exhaust tube is sealed off. Due to the simple operating steps of the method, compared with a traditional process production method that tube connection is firstly performed, then press sealing is performed and finally exhausting is performed, the method has the advantages that half of resources are saved or so, labor cost and energy cost are greatly reduced, and meanwhile pollution of impurities and water vapor to products can be reduced in the production circulating process.