Multi-source-data-based automatic modeling method and system of three-dimension model of geological structural surface

The invention discloses a multi-source-data-based automatic modeling method and system of a three-dimension model of a geological structural surface. The method comprises: S1, carrying out data source inputting; to be specific, defining a data input rule and searching data meeting the rule from an engineering geological database; S2, carrying out data format conversion; to be specific, converting various inputted data sources into ones in a uniform format and constructing a basic data set; S3, determining modeling data; to be specific, determining data authenticity of the data sources, extracting data meeting the requirement, and constructing a modeling data set; S4, determining elements of attitude; to be specific, fitting and correcting structural surface modeling elements of attitude based on the modeling data set; and S5, carrying out structural surface modeling; to be specific, establishing a structural surface three-dimension model according to the modeling data set and the elements of attitude of the structural surface and adding a corresponding geological attribute to the three-dimension model. With the method and system, the data authenticity determination of the data sources of the geologic structural surface and the automatic modeling process of the three-dimension model of the three-dimension model of the geologic structural surface are realized; and the accuracy and efficiency of the three-dimension modeling of the geologic structural surface are improved.