Abstract: With the acceleration of urbanization, a variety of ecological and environmental problems began to appear, especially in recent years. Under this background, LID (low impact development) has become a hot issue in landscape architecture industry.China is the most widely distributed loess country in the world, so the loess landscape has become an indispensable part of the landscape in China.Loess geology is prone to mutation, discontinuity and irreversibility, which makes it difficult to control flood peak discharge, runoff pollution and rainwater regulation.Aiming at the above special challenges,according to the site environment, through a series of analysis such as GIS, this paper selected LID measures to integrate the environment. In addition, aiming at the special geological condition of loess, artificial transformation was carried out according to local conditions to create ecological green landscape with unique northern landscape artistic conception. Based on the data model of GIS and MIKE, the rain flood of LID scheme of the project was evaluated and analyzed. After the transformation, the flood peak control, runoff pollution and rainwater regulation and storage capacity in the design site could meet the design expectations, which proved that it was feasible to integrate the scientific LID technology into the loess condition.