The study aimed at identifying the future of the American- Saudi relations in light of the growing Saudi Iranian relations under the auspices of China. The study dealt with the path of Saudi cooperation towards reconciliation with Iran under the auspices of China. The Arab Gulf and an explanation of what reconciliation might achieve in terms of political stability in the Middle East region and what both parties benefit from. The study relied on employing the historical approach to trace the course of historical competitive relations between Iran and Saudi Arabia, and dealing with historical sources and information that highlight the size of competition between the two parties throughout history as well as the analytical descriptive approach, which is a tool and method for analyzing the growth of Saudi- Iranian relations under the auspices of China.The study deduced a group of results and recommendations, as the study confirmed that the Saudi-Iranian rapprochement contributes to achieving security stability in the Middle East region and reduces confrontations and competitions between the two parties.