Abstract: As an important component of paper-pot mixer,the structure of bracket affects the safety of production directly.Taking the preliminarily designed bracket parts as the research object,the static analysis was carried out by Solidworks,and the maximum stress was 150.7 MN·m^-2,and the minimum safety factor was 2.333.In order to obtain the optimal design,the method of static finite element analysis and design example iterative optimization was adopted to automatically change the parameter value and optimize the calculation.A total of 7 sets of parameters were obtained in the example,among which 4.5 mm thickness was the optimal design.The optimized scaffold was reduced by about 16% of material.At this time,the maximum pressure was 156.0 MN·m^-2,the minimum safety factor was 2.254,and various data meets strength requirements.