The utility model discloses a gauge tube pipe bending tool, include: fixed bolster, top are provided with the gyro wheel and support groove and rotation shaft base, and rotation shaft base includes swivel bearing, wheel mould integrated configuration is provided with a circular round of mould at least, and the both sides of wheel mould integrated configuration are provided with the rotation axis to to take turns the mould integrated configuration through the rotation axis and can dismantle and fix on the fixed bolster, wherein the rotation axis of one side inserts the setting in swivel bearing, and the rotation axis of opposite side is placed and is supported the inslot in the gyro wheel, press from both sides the mould, fix on round mould integrated configuration, and be formed with the gauge tube accommodation space between the periphery of circular round of adjacent mould, and the handle, the fixed setting on round mould integrated configuration for make wheel mould integrated configuration rotate. Compared with the prior art, the utility model discloses gauge tube pipe bending tool simple structure, convenient operation are applicable to the return bend operation of different bend radius and different ring intervals, and the facilitate promotion is used.