Inflation has always been considered as one of the important economic indicators and has been one of the main problems of Iran's economy in the past four decades, and there are different opinions about its effects on the economy of a country. Therefore, it is important to investigate the factors that cause this phenomenon in order to control it, the most important of which are liquidity growth and exchange rate fluctuations. Therefore, one of the ways to control the liquidity and the exchange rate is to guide and direct the money and bank credits, which is one of the main objectives of the economic chapter of the Seventh Development Plan. The investigations of this research show that the two variables of liquidity and exchange rate have a close relationship in influencing inflation and are one of the effective solutions to control inflation. The experience of countries such as Russia, which, like our country, have oil foreign exchange income and have been able to control exchange rate fluctuations to some extent despite extensive sanctions, can have valuable lessons learned for Iran's economy.