The hydraulic slipway trolley is a kind of equipment specially used for moving the ship on the ground. It mainly has the functions of jacking, self-walking, single moving, multi-linkage, and moving back and forth of the lifting platform. According to the technological arrangement of the ship launching berth, the trolley is arranged in a combination of several sets, and each two small cars lift the ship beam on the top, and then the ship beam supports the ship to move vertically to the designated working position at the same time, and the ship is dropped off the pier to complete the ship moving vertically from the berth area to the floating tank.