Boat house refers to a kind of elegant boat for lake visiting and appreciation, and it is also called tour pleasure boat and painted pleasure boat (also called land boat). The boat house in the garden is the artistic water building. Rugui Boat House is opened facing to the water in three sides, it is divided into front, middle and back cabins with round ridge roof, the front cabin is higher and looks like nose, and the four corners of the roof seem to fly. And there are watch towers below eaves and among lintels. The middle cabin is slightly lower and it is a waterside pavilion with two roofs, its gooseneck chairs on both sides integrate the two cabins as a one body smoothly. Stern room is linked to the pavilion to form the beauty of the ragged change.