Water curtain wall is a common man-made landscape, which is popular in home decoration. It can play the role of decorating the space and improve feng shui at the same time. When designing the water curtain wall in front of the sofa, we should combine the principles of physics to overcome the noise of running water, and at the same time give people a waterfall feeling of flying down and filled with water mist, and at the same time skillfully use the lights to achieve a colorful effect. In design, it needs to be integrated with the surrounding environment to make the whole space smart and fresh.