The invention provides a low-drop-out voltage regulator. The voltage regulator comprises a power tube, an error amplifier, an operational amplifier, a control transistor and an output end VO. The source of the power tube is connected with the power supply end, the drain is connected with the output end VO, the grid is connected with the output end of the error amplifier, the first input end of the error amplifier is connected with the drain of the power tube, and the second input end of the error amplifier is connected with a first reference voltage. The first input end of the operational amplifier is connected with the output end VO, the second input end is connected with a second reference voltage, the output end is connected with the control end of the control transistor, one connection end of the control transistor is connected with the drain of the power tube, and the other grounding end of the control transistor is connected with the grounding end. Compared with the prior art, a second feedback loop is added to adjust the output voltage and offset leakage power of the power tube, and accordingly, the static current of the low-drop-out voltage regulator can be reduced.