This paper presents a new drawing design system, which is the integration of two and three dimension, HIDAS three-dimensional intelligent drawing system. The paper introduces the framework of the drawing system, and describes system management functions, including the integration of two and three dimension data management, three-dimensional operation mode management, sub-graph object management, drawing data update management, graph tagging management. Drawing system uses the plotting way, which is the combination of threedimensional model and two-dimensional graphs. Sub-graph is obtained by operating the model, which leads to the data association of the model and the graphs, and they establish internal correspondence. The paper also describes the auto-update mechanism of drawing, when the model changes, the update data passes from the model to the drawings, and the sub-graph, graph tagging, charts and other information will automatically update.