黄土高原半干旱区的降水为集水农业发展提供了条件，但是，集水不仅取决于降水，还受地貌、地表组成物质、土地利用等因素制约。通过分析地貌条件和土地类型对集水的影响， 提出了集水适宜度指标体系。同时，在综合分析影响集水的自然因素的基础上， 划分出各集水地域类型，为确定集水有效区、集水工程规模及布局提供理论依据，使各地可因地制宜发展集水农业，避免造成不必要的损失。 The precipitation in the semi-arid area of ​​the Loess Plateau provides the conditions for the development of catchment agriculture. However, the catchment not only depends on the precipitation, but also is controlled by such factors as the landform, surface composition and land use. By analyzing the influence of landform and landform on water catchment, an indicator system of water suitability was put forward. At the same time, based on a comprehensive analysis of the natural factors that affect water catchment, we divide the types of catchment areas and provide theoretical basis for determining catchment effective area and water catchment project size and layout, so as to enable all localities to develop catchment agriculture according to local conditions and avoid Cause unnecessary loss.