The invention discloses a seamless paper pipe production line, which comprises paper processing equipment, a paper sizing device, a paper pipe covering pipe, a paper pipe waxing device and a paper pipe calendaring device. At first, the paper processing equipment processes paper so that the two sides of the paper become thin, the surface flatness and hardness of the paper can be improved, and then, the paper is chopped into be in a proper dimension for standby; and the paper sizing device sizes the surface of one side of the paper, the sized paper is covered on the peripheral surface of the outer side of a paper pipe through the paper pipe covering device, the edge parts of the two sides of the paper, which become thin, are clung with each other, and in this way, a seamless paper pipe can be formed. After the paper pipe waxing device waxes on the peripheral surface of the outer side of the seamless paper pipe, the seamless paper pipe becomes smooth; and the seamless paper pipe is subjected to calendaring by the paper pipe calendaring machine, so that the seamless paper pipe has good straightness and cylindricity. When the seamless paper pipe is used for winding a thin film, a copper foil and other thinner materials, the materials can not be wrinkled, so that the waste caused by the damaged materials can be greatly reduced.