The study tackled the open public information available in Saudi ministries. The study discussed all aspects of the subject tackling the concept, importance, and principles of open public information its benefits and obstacles against applying open public information available in Saudi ministries, lifecycle, and types of open licenses. The study aimed to identify the reality of applying open public information available in Saudi ministries websites and open data portals as well as identifying the most important weaknesses to reach suggestions participating in limiting such weaknesses at least. The study adopted the descriptive method depending the comparative analysis. To collect information, the researcher used the review list tool prepared through pursing Arabic and foreign thinking literatures in open public information field and assessment criteria approved by organizations and institutions specialized in open public information.