This article explores the intricate landscape of international commercial law through a comparative analysis, focusing on the theoretical foundations, dispute resolution mechanisms, and intellectual property rights across different legal jurisdictions. By examining the roles of comparative law, the tension between harmonization and legal pluralism, and the variances in contract law, this study sheds light on the challenges and opportunities presented in global commerce. Furthermore, it delves into arbitration, mediation, and the influence of legal culture on dispute resolution, alongside a detailed examination of copyright, trademark, and patent laws in a globalized economy. This comprehensive analysis aims to provide legal practitioners and businesses with insights into navigating the complexities of international commercial transactions and intellectual property protection, highlighting the importance of strategic legal planning and international cooperation.