A lifting hydraulic pallet truck has a forked rack, a lever, a hydraulic assembly and a control rod. The forked rack has a mounting bracket and an abutting surface. The lever is mounted pivotally under the mounting bracket and has an abutting segment selectively abutting the abutting surface of the forked rack. The hydraulic assembly has a hydraulic seat, an active hydraulic cylinder and a quick reflowing device. The control rod is mounted pivotally above the hydraulic seat and is connected to the active hydraulic cylinder. Therefore, the user steps the lever to quickly lift the forked rack in a certain height. The pre-lifted height allows the user to reduce the pivoting times for pivoting the control rod to a desired height.