Abstract: Landscape is an important factor affecting catchment hydrological processes and water cycling. The study on how landscape affects hydrological processes in a catchment may provide some scientific basis for reasonable water resource management and utilization. A case study was conducted of a catchment, Jinjing catchment of Changsha County, Hunan Province, making use of the hydrological and meteorological data measured during 2010-2014 and the remote-sensing landuse maps of that period to analyze effects of the landscape pattern of the catchment on hydrological processes (i.e. river runoff and base flow), with the Pearson correlation analysis and multiple linear regression models. Results show as follows:(1) volume of the river runoff in the catchment fluctuated drastically and seasonally, while that of the base flow did not vary so much with the season; (2) landscape pattern significantly influenced hydrological processes in the catchment, especially during the dry and normal period, when volume of the base flow was significantly and positively related to Shannon's diversity index, patch density, and edge density, but negatively to contag index, largest patch index, aggregation index, and cohesion index(P<0.05); and (3) river runoff coefficient and volume of the base flow in a year or during the dry and normal periods can be predicted from proportions of land use types and landscape patterns in area. Therefore, rational landscape planning of the catchment based on the prediction will help scientific management and reasonable utilization of the water resources in central subtropical hilly agricultural catchments.