Reducing corruption, promoting accountability and gaining public trust and satisfaction are among the top goals of any government. One of the key and controversial tools in achieving these goals, transparency is achieved relying on the issue of free access to information. Government ministries, as the highest executive bodies of the country, are also responsible for directing and implementing all affairs throughout the country, which the magnifying glass of transparency on the ministry will eliminate their operational ambiguities. Research method is quantitative and the research goal is evaluative. Also the field research environment and the research strategy are survey type. Given the levels of ministries in Iran's Civil Service Management Law and the ranking of their websites, the transparency of the 18 ministries' websites was assessed and evaluated by a three-dimensional survey of 40 questions. The findings of the study indicate that the websites of the ministries in the category of governance are less transparent; Moreover, websites that rank better in Iran are more transparent