The utility model discloses a controlgear of unbalanced three phase adjustment. Wherein, controlgear of unbalanced three phase adjustment includes: measuring device is connected to three each looks of taking a fancy to to measure the voltage signal of phase change switch department, the treater is connected to measuring device, according to voltage signal generates and switches the instruction, and the controller, with the treater is connected, is used for the basis switch command control phase change switch switches mutually do not to another. The utility model provides an unbalanced three phase adjustment system need with main control unit and need and the technical problem of control node communication. Improve service reliability, also reduced equipment cost.