Given the importance of strategic agility in banks, the purpose of research is to evaluate the designed strategic agility model by the researcher in BankMelli. The model, which is the result of Meta-Synthesis and Delphi-method, consists of 4 main dimensions, 11 components and 34 indicators. The statistical population includes the official employees of Bank Melli with specialized jobs working in the offices units in Tehran (946 people). The sample size was determined based on Cochran's formula (275 people) and sampling was done randomly. The data collection method was the use of a researcher-made questionnaire based on the extracted model, which Its validity and reliability was confirmed using content validation and Cronbach's alpha. Testing the model in BankMelli, using statistical tests such as confirmatory factor analysis (second order) using Chi-square test and examining the fitness of RMSEA, P-value, χ2/df indicators as well as T-test were performed and the model was evaluated.