Cyberterrorism is one of the emerging challenges in the field of international criminal law, which, with the expansion of information and communication technologies, has created new threats to global security. The main research question of this study is: what are the gaps in the international criminal law system in combating cyberterrorism, and how can drafting a global convention address these issues? The necessity of this research stems from the fact that despite increasing threats of cyber-terrorist crimes, international laws have not yet provided a comprehensive and adequate response to this issue, and existing frameworks face limitations and shortcomings. The main objective of this article is to thoroughly examine these gaps and offer suggestions for drafting a comprehensive global convention on cybercrimes, with a focus on criminal law aspects. The research method in this article is descriptive-analytical and based on documentary study, conducted through reviewing domestic and international laws, judicial rulings, and legal doctrines. The findings indicate that the lack of unified definitions and international legal standards, weak judicial cooperation, and the absence of binding regulations are among the major obstacles to effective countermeasures against cyberterrorism. Additionally, existing conventions, such as the Budapest Convention, have not been able to cover all legal and practical dimensions of this complex crime. The novelty of this article lies in presenting a comprehensive and multi-dimensional framework for drafting a global cybercrime convention that simultaneously preserves human rights and international norms while ensuring effective countermeasures against cyberterrorism. This study can serve as a guide for legal reforms and strengthening international cooperation in addressing this global threat.