Abstract: It is well known that the zero-load method is generally used to analyze the geometric construction of complex plane systems in structural mechanics. However, the zero-load method needs involved calculation, and the analysis process is cumbersome. In order to simplify the analysis of geometric construction of complex plane system, based on the substitute member method and the zero-load method, a new method for geometric construction analysis of complex plane systems is developed, and the basic rule of geometric construction analysis of complex plane system is presented. Finally, the feasibility and superiority of this method are demonstrated by several examples.