This journal discusses the open political system applied in the Kingdom of Saudi Arabia, especially in the era of King Salman Bin Abdulaziz Al Saud who was also supported by the presence of the Crown Prince, Prince Muhammad Bin Salman. The open political system in the Kingdom of Saudi Arabia was born the author of an analysis using the political system theory proposed by David Easton and supported by the presentation of Gabriel Almond. The application of an open political system in the Kingdom of Saudi Arabia stems from the demands of the community which is referred to as an Input Demand in a political system. In addition, the open political system was also supported by King Salman who was the highest authority in the Kingdom of Saudi Arabia. The output of the open political system in the Kingdom of Saudi Arabia is the birth of a Saudi Vision 2030 policy, as a form of reform and change to a more open and modern form.