The invention discloses a hydraulic balance valve automatically adapting to load change and flow change. A valve body of the hydraulic balance valve is provided with an oil opening A, an oil opening Band a control oil opening K. A hydraulic control one-way valve, a flow detection valve and a controllable throttling valve are in series connection in sequence from top to bottom and are in parallelconnection with a one-way valve. The open area of the controllable throttling valve is controlled by a flow control piston and a load control piston. The two ends of the flow control piston are connected with an inlet and an outlet of the flow detection valve correspondingly. A piston cavity of the load control piston communicates with the oil opening A. The open area of the controllable throttling valve is increased as increase of flow under the effect of the flow control piston, and thus, the backpressure generated by the controllable throttling valve is matched with the load. According to the hydraulic balance valve, the flow detection valve and the flow control piston are added; and the backpressure matched with the load is automatically generated when the passing flow changes, and hydraulic balance of the load and the flow change is achieved.