The invention provides a sealing tube syringe push device comprising a bed body and a slide block; the bed body comprises a first guide groove; a first end of the bed body extends upward to form a stop wall; a through hole is formed in the stop wall; the through hole is used for the passing through of a nipple of a syringe; a tooth bar is also formed on an upper side of the bed body; the tooth baris parallel to the first guide groove; the slide block comprises a first support wall; a first projection is formed at a lower end of the first support wall; the first projection is slidingly clampedin the first guide groove and will not be separated from the opening of a first groove; a shaft penetrating the upper end of the first support wall is formed; a gear and an actuating wheel are fixedly installed on the shaft and are respectively positioned at two sides of the first support wall; the gear is engaged on the tooth bar; the actuating wheel is used for pushing a push handle through thecurved surface thereof; the actuating wheel is a cam or eccentric wheel. By pushing the slider at a constant speed, the curved surface of the actuating wheel outputs a periodically changing driving force, thereby realizing the pulsed output of the sealing liquid.