Ship lift, dock and working method of ship lift

The invention discloses a ship lift. The ship lift is arranged in a dock, is used for lifting a ship out of the water surface, and comprises mounting frames, a platform, lifting devices and a traction device; the mounting frames are arranged on the two sides of the dock; the platform is arranged between the two mounting frames; the lifting devices are arranged on the mounting frames, the lifting devices are connected with the platform and used for driving the platform to move up and down; and the traction device is arranged on the mounting frames, and the traction device is detachably connected with the ship and used for driving the ship to move in the first direction. According to the ship lift, an existing dock ship stopping working mode can be changed, a harbor basin does not need to be dug, and therefore the construction cost can be effectively reduced. Correspondingly, the invention further discloses the dock and a working method of the ship lift. 本发明公开了一种升船机，设于船坞中，用于将船舶提升出水面，包括：安装架，设于船坞两侧；平台，设于两个所述安装架之间