The invention relates to a passive unbalance control module structure, which includes a mounting frame, a knife melting switch, a vacuum contactor, a control board, a reactor, a capacitor and connecting terminals, and is characterized in that the mounting frame includes a fixed steel channel and an angle steel , the fixed steel channel is on the bottom, the angle steel is on the top, the capacitor and the reactor are installed on the fixed channel steel together, the knife melting switch, vacuum contactor and control board are all installed on the angle steel, the knife melting switch, vacuum contactor , control board, reactor, capacitor and connection terminals are connected in series; this passive unbalance control module structure is more stable, small in size, simple in components, wide in use and convenient in maintenance, etc., which is different from traditional active Compared with the passive imbalance management module, this module is more reliable, more stable and more cost-effective.