Provided is a negative flow hydraulic loop controlled lifting system. A hydraulic cylinder of the lifting system is a three-cavity hydraulic cylinder and is additionally provided with a hydraulic energy accumulator, a safety valve, a check valve and a pressure indicator, wherein the hydraulic energy accumulator communicates with the check valve, the check valve communicates with one path of a first operating cavity A of the three-cavity hydraulic cylinder, and the safety valve and the pressure indicator communicate with the other path of the first operating cavity A of the three-cavity hydraulic cylinder. The negative flow hydraulic loop controlled lifting system reduces the power loss and the system heating amount to the greatest extent, improves operation stability of a boom hydraulic cylinder, and is compact in structure, high in degree of integration, low in operation energy consumption and applicable to excavators, loaders and telescopic boom forklift trucks.