The global economy has seen unprecedented growth in trade and supply chain networks, with cross-border trade serving as a critical component of international business. However, these trade flows are governed by a complex web of laws, regulations, and international agreements, creating numerous challenges for businesses engaged in cross-border transactions. This research paper examines the impact of cross-border trade laws on supply chain management, exploring both the legal framework and the practical difficulties companies face in navigating international trade regulations. Key challenges discussed include compliance issues, delays in customs, tariffs, non-tariff barriers, and the evolving nature of international trade law. The study also analyzes the ways in which businesses can mitigate risks, optimize supply chain operations, and remain competitive in a global market.