Knowledge of optimal monetary policy and frequently the rules of optimization in flexible inflation targeting assign central banks the task of developing all types of cyclical policies. The goal of optimal inflation policy is to achieve macroeconomic stability and stimulate sustainable economic growth. To determine the amount of monetary policy associated with the rule of monetary policy and to establish the proposed optimal inflation target, we use the DSGE econometric model. The relationship between r (refinancing rate) and the optimal inflation target has a downward slope. Although the growth of the optimal inflation level is smaller than the decrease in r, it has been found that in areas with current empirical significance, the slope of the relationship is close to -1. This angle parameter is sufficient to ensure uncertainty. It was found that in strategies such as price level setting and their diversity, the optimal inflation target is significantly lower and less sensitive to r."*