A paper tube conveying fixing clamp comprises a semicircular lower clamping groove and a semicircular upper clamping groove, wherein a lifting rod is fixedly arranged on the surface of the upper clamping groove; the lower end of the lower clamping groove is fixedly arranged on a conveying belt; a plurality of lower clamping grooves are evenly and continuously fixedly arranged on the conveying belt; the upper clamping groove is completely separated from the lower clamping groove; the lifting rod is mounted on a cyclic lifting starter; a rotation roll is arranged in the conveying belt to tension the conveying belt; the rotation roll is connected with a motor through a cyclic retarding converter; and a rotating shaft is fixedly arranged on a floor stand. The paper tube conveying fixing clamp is characterized in that a paper tube is automatically and continuously fixed by the upper clamping groove and the lower clamping grooves and conveyed away by the lower clamping grooves and the conveying belt after the processing is completed; and therefore, the time of fetching and placing the paper tube is shortened and the working efficiency is improved.