The securitisation of military and political sectors has been underway for decades in the context of Qatari politics. Conceptualising the role of security in Qatar’s foreign policymaking is the primary purpose of this study. Qatar’s security tools and strategies in the initial era of the Gulf Crisis 2017 are central elements of this research using the Copenhagen school's securitisation framework. The Gulf Crisis started in June 2017 and took more than 3 years for the parties to warm the relations again. This research depicts the early process of the Gulf Crisis 2017 through categorising threats and vulnerabilities posed to Qatar's military and political security.