Space and ground integrated monitoring data fusion method and system

The invention discloses a space-ground integrated monitoring data fusion method and system, and relates to the field of monitoring of geological disasters along oil and gas pipelines. The method comprises the following steps: acquiring multi-source satellite monitoring data of a target area along a pipeline; performing interpolation processing on the multi-source satellite monitoring data to obtain a plurality of pieces of intermediate data, and performing three-dimensional deformation calculation on each piece of intermediate data to obtain fused space-based data; and fusing the fused space-based data with the foundation monitoring data. According to the scheme, multi-band information of a single sensor or information provided by different types of sensors can be integrated, redundancy and contradiction possibly existing among information of multiple sensors are eliminated, complementation is achieved, timeliness and reliability of remote sensing information extraction are improved, and the use efficiency of