Meter rear line pipe-penetrating bending system and meter rear line pipe-penetrating bending method

The invention discloses a meter rear line penetrating pipe bending system, and relates to the technical field of threading pipe bending, the meter rear line penetrating pipe bending system comprises a bottom plate, the upper side of the bottom plate is provided with a hollow block, the hollow block is provided with a threading pipe, and one side of the threading pipe is provided with a bending mechanism; the bending mechanism comprises a hollow shell fixedly connected to the upper side of the bottom plate, a plane threaded block is rotationally connected into the hollow shell, and the problem that when the cable protection pipe is bent into a U shape, only a pipeline with the fixed size can be bent, adjustment cannot be conducted according to the actual laying condition, and the service life of the cable protection pipe is prolonged is solved. According to the device, a plane threaded block can drive an adjusting block to move, meanwhile, a first electric telescopic rod is used for driving a hollow block to m