Paint floor jiang is a dragonkind building on the edge of the square, is composed of the main building on the second floor and nearly hundred meters long. Looking down at the jialing river, the second floor of the main building is close to watch and the other side of the river wetland composed of Yin and Yang fish pattern is the best place. Said that wu daoxuan once left the painting in the upstairs, later generations in the upstairs fit "wu daoxuan powder in the words". The entire river floor walls and roof, painted in wu daoxuan representative paintings, jialing river scenery, such as industry, gorgeous.