Cargo loading and unloading device for ship

The utility model relates to the technical field of cargo loading and unloading, and discloses a cargo loading and unloading device for ships, which comprises a base, and a hydraulic column is fixedly connected to the bottom of the base and located in the middle. According to the cargo loading and unloading device for the ship, when the device needs to move, a hydraulic column drives a first connecting plate to move downwards, the first connecting plate drives moving wheels to move downwards through a rotating plate, the moving wheels make contact with the ground, the device is pushed to move, the mobility of the loading and unloading device is improved, and the working efficiency of the loading and unloading device is improved; a clamping device is moved to the upper side of a box body, a first clamping plate is moved to the top of the box body, a rotating wheel is driven to rotate through rotation of a forward and reverse motor, the rotating wheel drives a fixing rod to move leftwards through a connecting r