Lifting mechanism load test bench for crane

The utility model discloses a crane lifting mechanism load test-bed, wherein two rail beams for holding tested small vehicles are respectively equipped perpendicularly to two large beams, and two small beams are respectively welded and hanged on the bottoms of two large beams in two rail beams. A sensor and a support are respectively equipped on a shoulder level on bilateral uppers of a flexible beam, and the sensor and the support respectively aim at the bottoms of two small beams. The intermediate section of the upper of the flexible beam connects with bilateral drawplates of the flexible beam, hooks of the tested small vehicle can hook another two pin axles between two drawplates, and four legs support two large beams. No special sling or testing block is required due to the fact that testing load can be generated by the tested objects. The utility model can be installed in ordinary manufacturing workshops with wide application ranges due to low requirements of the fundamental bearing capacity of this testing device and has extensive employment prospects for large and medium crane tests.