The invention provides a data visualization system and an implementation method. The system comprises: a visual design component configured to generate a visual data packet, the visual data comprisingtarget data and a graph, the target data and the graph establishing a mapping relationship at a system background, the target data being data converted by the system; And the visual interface is usedfor displaying the data packet of the visual design component. According to the method, the situation that SQL operation is excessively depended in the past is solved, and the method can adapt to complex data calculation logic.