According to the geological characteristics of hydraulic and hydropower engineering, and based on the geologic datasets such as satellite images, topographic contour maps, drilling and adit data, geological description, georeferenced data, geophysical test data, test data among others, a spatial integrated approach of geological information combining multi-source data is proposed. Through the space interpretation and analysis of geological structures including terrain, rock formations and geotectonic bodies, a series of two-dimensional geologic sections, consistent with all data, were obtained by using a semi-automatic plotting method. Then, all these data were automatically layered and integrated analyzed. A practical example showed that coupling analysis and automatic integration of geological data with multiple sources, different accuracy and resolution ensure that all valid data become available and reliable information.