The invention provides a self-regulating digital hydraulic valve, a control system composed of the same and a control method. The self-regulating digital hydraulic valve is composed of an instruction terminal, a feedback terminal, a valve element, a valve sleeve, a valve body and the like. The instruction terminal is connected with the valve element and can drive the valve element to move in the axial direction. The feedback terminal is connected with the valve sleeve and can drive the valve sleeve to move in the axial direction. The valve element and the valve sleeve interact to achieve the comparing and regulating process of an instruction signal and a feedback signal, and therefore the automatic regulating mechanism of the control process is achieved. The valve element and the valve sleeve can be controlled to move at the same time, and according to the control method, the instruction signal and the feedback signal are both exerted on the hydraulic valve so that the automatic regulating process controlled in a closed-loop mode can be achieved in the valve. The control method for controlling resetting is adopted so that the valve element and the valve sleeve can be prevented from moving to dead points, and it can be ensured that the valve element and the valve sleeve both reset to the zero position in the start state of each control process. Due to the fact that conversion from rotation movement to linear movement in the valve is omitted, mechanical dead areas can be reduced to the maximum extent, and accuracy can be improved.