The invention provides a visual conversion system and method for real-time data image, belongs to the technical field of data conversion, and the system comprises a data collection module, a model calculation module, a model data correction module, a graph conversion module, and a display module. Two-dimensional and three-dimensional views are combined with virtual reality technology, and urban panoramas including urban blocks, landmark points, buildings, maneuvering targets, pipeline facilities and the like are completely and vividly presented; The data according to two dimensions of time andspace is synchronously presented and a data change trend is comprehensively mastered. real-time monitoring, historical playback and simulation deduction of spatial data are supported, so that rules are clear and visible, decisions can be made based on the rules, and the method is more efficient; a plurality of chart presentation modes is provided, and besides planar charts, chart superposition based on a three-dimensional space scene is also supported.