The utility model discloses an intelligent balanced many powers charging device of dc supply of transformer substation, its structure is including charge the cabinet body, display screen, operating panel, control key, direct current voltmeters, the link row that charges, balance of voltage organism, maintenance door, power source mechanism, operating panel locates the cabinet body front surface upper portion of charging, the display screen is inlayed in operating panel front surface upper portion, the control key becomes one row and inlays in operating panel front panel sandwich digit under the display screen through the keyway, direct current voltmeters becomes one row and locates the control key below. The utility model discloses a be equipped with a direct current voltmeters, can show intelligent balanced many powers charging device of dc supply of transformer substation's DC voltage in real time, be convenient for observe the balanced degree that many powers charge to whether the work of judging the device is stable, effective cognition degree that improves the operating condition of device.