The present study was conducted with the aim of investigating the impact of organizational design on organizational performance with the mediating role of organizational intelligence in Ardabil Municipality. This is a correlational research in terms of applied purpose and in terms of data collection method. The statistical population in the present study includes the lands of the five districts of Ardabil municipality with the number of 600 people. According to Cochran's formula, 234 people were considered as a statistical sample. The sampling method in this study is stratified random sampling. Standard questionnaires were used to collect information. To analyze the research hypotheses, structural equation models have been used using software. The findings of the research show that in the first stage of Barron's test, the regression coefficient of organizational design on organizational performance is 0.705 and the regression coefficient of organizational design on organizational intelligence is 0.407. In the second stage, the regression coefficient of organizational design on performance is 0. Organization decreased from 0.446 to 0.428, therefore, with the entry of the mediating variable (organizational intelligence) into the equation, the effect of the exogenous or independent variable decreased from the first step to the second step. Organizational intelligence plays a mediating role in organizational design on organizational performance.