The invention discloses an intelligent low-voltage uncompensated controller which comprises a control chip unit, wherein a voltage measurement preprocessing unit and a current measurement preprocessing unit are connected between the control unit and a power grid; a power parameter of a load is calculated by the control chip unit with the voltage and current measured by the voltage measurement preprocessing unit and the current measurement preprocessing unit; and the power parameter is in output connection with a capacitor by a communication unit after analysis and processing. With the adoption of the mode, the controller can adopt a large-screen liquid crystal display and a humanized touch-sensitive key, is novel and attractive in appearance, complete in function, quick to mount, simple to operate, easy to use and high in protectiveness, displays visually, can be matched with various different capacitors for use, and runs reliably.