Steel bar bending tool capable of controlling bending angle and bending straightness

The utility model relates to the technical field of reinforcing steel bar processing, in particular to a reinforcing steel bar bending tool capable of controlling bending angle and bending straightness, which comprises a main rod and a plurality of branch rods vertically connected with the main rod, and is characterized by further comprising a sleeve, size scales are engraved on the sleeve, and an angle measuring component is arranged at the tail of the sleeve; the angle measuring assembly comprises a rotating pointer and a dial, the dial is fixed to the sleeve, a rotating shaft penetrates through the dial, the rotating pointer is fixedly arranged at one end of the rotating shaft and located on the side, with scales, of the dial, and the other end of the rotating shaft is fixedly connected with a hanging piece; according to the lever principle, steel bars are bent, the bending angle and the bending straightness can be accurately controlled, the bending quality of the steel bars is improved, material waste is