The utility model relates to an integrated full hydraulic brake valve which is used in a loader. The utility model is characterized in that the P port is at the same time communicated with a liquid permitting valve, a brake electromagnetic valve for stopping the vehicle and emergency and a double-route brake valve; the brake electromagnetic valve for stopping the vehicle and emergency is communicated with the BR3 port of the brake oil-cylinder; the double-route brake valve is communicated with the BR1 port of the front bridge and the BR2 port of the back bridge, and the double-route brake valve and the brake electromagnetic valve for stopping the vehicle and emergency are respectively provided with the oil route of S1 port, S2 port and S3 port, and the connection part between the P port and the brake electromagnetic valve for stopping the vehicle and the emergency is provided with an one-way valve; the oil route of the P port and the double-route brake valve is provided with a double-one-way valve the oil outlets of which are communicated respectively with the two oil inlets of the double-route brake valve; the utility model has the advantages that one valve comprises the whole brake system, thus simplifying the installation of the components of the full hydraulic brake system and the integrated full hydraulic brake valve of the pipe route connection. The utility model can accomplish the four functions of the brake system being filled with liquid first, the system pressure controlling, the system maintaining pressure and the system pressure outputting.