Abstract: Software risk evaluation indexes were put forward,and risk level of AutoCAD platform,commercial software or self-developed software based on AutoCAD was evaluated.At the same time,according to the evaluation results,the corresponding domestic substitution schemes and their implementation safeguard measures were formulated,hoping to establish an innovative ecosystem of two-dimensional design platform.It is suggested to actively promote the application of domestic CAD platform,and assist software manufacturers to give priority to transplantation,testing and deployment of professional design software with a high degree of commercialization and wide application in the industry,so as to realize the domestic substitution of most application scenarios of AutoCAD.After the conditions are ripe,the remaining professional software will be transplanted to the domestic CAD platform,and finally the domestic substitution of AutoCAD will be completely realized.