Full-hydraulic brake device of loader

The utility model discloses a full-hydraulic brake device of a loader. The device comprises a hydraulic pump, a hydraulic oil temporary-storage tank and a brake which are connected in turn, wherein a liquid filling brake valve is mounted on a pipeline between the hydraulic pump and the hydraulic oil temporary-storage tank; a pressure gauge and an energy accumulator are mounted on the hydraulic oil temporary-storage tank; a brake valve is mounted on a pipeline between the hydraulic oil temporary-storage tank and the brake; and the full-hydraulic brake device also comprises a control circuit for controlling the components. When in work, the hydraulic pump fills liquid into the energy accumulator, and after the set pressure is reached, the liquid filling brake valve stops filling liquid into the energy accumulator; and when in brake, a pedal brake valve is stepped on or a handbrake brake valve is pulled up, and the energy accumulator supplies high-pressure hydraulic oil which enters the brake through the pipelin