Abstract:Taking the application of 450 t hydraulic lifting cable crane in 1915 Chanakale Bridge in Turkey as the research object, the structure design and the main engineering machinery technology of the cable crane are introduced firstly. Then the principle of cable crane walking on the main cable in the air is analyzed. Finally, the key technologies of self-installation and self-disassembly of cable crane are discussed respectively in order to provide the reference for the design and site construction of the cable crane.