Movable construction hanging basket attached to bridge

The invention discloses a movable construction hanging basket attached to a bridge. The movable construction hanging basket comprises a trolley base, a balancing weight fixedly installed on the trolley base, a cantilever beam fixedly connected with the trolley base, a crawling ladder fixedly connected with the cantilever beam and a hanging basket fixedly connected with the crawling ladder. A stable safety device is fixedly installed on the cantilever beam and comprises supporting connecting frames arranged on two rod-shaped structures in a sliding mode, the two supporting connecting frames are fixedly connected through a connecting rod, a supporting oil cylinder is fixedly installed at the bottom of each supporting connecting frame, and a telescopic shaft of each supporting oil cylinder reciprocates in the vertical direction. The stable safety device further comprises a transverse moving air cylinder with one end hinged to the longitudinal beam, the end of an air cylinder shaft of the transverse moving air cy