Container hooking prevention signal warning system of container crane

The utility model discloses an anti-hooking signal warning system for a container crane, which relates to the technical field of freight wharf equipment and particularly comprises a first signal lamp, a second signal lamp, a channel distance measuring device, a lifting appliance height measuring device, a lifting appliance lifting pin signal device and an intermediate relay control circuit, the intermediate relay control route controls the on-off state of the intermediate relay according to the results of the channel distance measuring device and the sling height measuring device, and the on-off state of the intermediate relay corresponds to the warning/safety signal state of the first signal lamp or the second signal lamp. After the anti-hooking warning signal system is additionally arranged on the wharf site, a tractor driver can observe and judge whether the tractor can be safely started to safely drive and evacuate in real time, and the risk of hooking is effectively avoided; and after the tractor is addi