As the largest oil producer in the Middle East, Saudi Arabia enjoys a high position in power exchanges in the Middle East region.However, the country is very vulnerable to internal and external threats.This security vulnerability has led Saudi Arabia to adopt a strategy of alliance with foreign powers, especially the United States.Although the alliance is decades old, it has faced serious challenges in recent years.Saudi Arabia has therefore tried to take an independent approach to its security in recent years.One of Saudi Arabia's strategies to ensure its security is to acquire nuclear capability, especially to achieve the full cycle of nuclear technology.The question is, therefore, why Saudi Arabia has changed its security approach and moved towards an independent security policy, especially through the acquisition of full nuclear cycle technology?This article argues that Saudi Arabia's efforts to gain independence, especially in the field of internal and external security, are due to the weaknesses of the past security model, especially distrust of the United States as a provider of Saudi security.This article shows that Saudi Arabia's adoption of this security approach has enormous regional and international consequences and will exacerbate the security puzzle at the regional level.