In today's world, organizations that have strategic management adapt to the changing environment and have more flexibility in organizational behavior, thereby increasing their organizational performance. Based on this, it examines the relationship between strategic management and human resource productivity, the emphasis on role of organizational behavior flexibility. The method of the present research is practical in terms of its purpose, and in terms of the method of data collection, the descriptive research method was correlational. The research tool was a questionnaire whose content validity and reliability were confirmed by calculating Cronbach's alpha. The statistical population of the research was the employees of organizations under the Ministry of Energy, including electricity, water and sewage distribution companies, etc., and 207 people were randomly selected based on Cochran's formula. Data analysis was done by structural equation modeling with Smart PLS software. The findings show the positive and significant effect of strategic management on the flexibility of organizational behavior, as well as the positive and significant effect of the flexibility of organizational behavior on labor productivity. Finally, suggestions were made based on the research results.