The utility model discloses a tube bending machine, including the work panel the plate body is for the flat board, the fixed orifices is located on the plate body, the arc hole is located on the plate body, wherein, the hole limit in arc hole is equipped with the scale, the fixed roll, one end is fixed in the fixed orifices, move roller, one end assemble in the arc hole, wherein, pusher arm, its one end rotary type connect in the other end of fixed roll, move roller's other end rotary type connect in on the arm body of pusher arm, fixed dog is located the below in space, when the return bend, body one end is passed the space, and be fixed in fixed dog, the one end of pusher arm with the fixed orifices is the center and rotates, move roller follows the orbit in arc hole rotates. This tube bending machine has higher compatibility, has improved manual tube bending machine's application range, the effectual work efficiency that has improved.