The role of diplomatic relations in the era of globalization is very important in maintaining international stability. In the midst of rapid technological development and interconnection between countries, diplomacy plays a strategic role in overcoming complex global issues, such as climate change, terrorism and international trade. Diplomatic relations not only include formal negotiations at the government level, but also involve relations between peoples, cultures and economies. One important aspect of diplomatic relations is strengthening multilateral cooperation. International organizations such as the UN, WTO, and ASEAN are forums where countries can carry out diplomacy to regulate common interests. Through these forums, countries can reach consensus on global issues that affect all of humanity. For example, in dealing with climate change, multilateral diplomacy facilitates agreements to reduce carbon emissions and support sustainable development efforts. In the era of globalization, the role of non-states such as NGOs and corporations is also increasingly significant in diplomacy. They often have direct access and extensive networks that help strengthen relations between countries. NGOs, for example, can advocate on humanitarian and environmental issues, pushing governments to take more rapid and effective action. Meanwhile, multinational corporations can act as a bridge in economic relations between countries, creating job opportunities and introducing innovation. Bilateral relations remain an important pillar in diplomacy. Countries enter into bilateral agreements to strengthen trade, investment and security cooperation. By knowing the advantages of each country, diplomats can create mutually beneficial agreements. For example, free trade agreements can increase market access for local products, encourage economic growth, and create political stability. Information technology is also changing the way diplomacy is conducted. Digital diplomacy, which includes the use of social media and other online platforms, allows countries to communicate directly with the international public. This makes the diplomatic process more transparent and responsive to public opinion. With increasing public participation in global issues, countries must be more responsible and adaptive in foreign policy. In the context of conflict, preventive diplomacy is key. Countries can collaborate in preventing conflict by identifying potential tensions before they erupt into violence. Through open dialogue and mediation, they can find a peaceful solution. This approach not only benefits the countries involved, but also maintains regional and global peace and stability. The impact of diplomatic relations in the era of globalization is also visible in migration movements. Diplomacy creates a framework that allows countries to better manage migration flows, ensuring protection for migrants and refugees. International cooperation in this case is very important to create just and humane policies. In conclusion, the role of diplomatic relations in the era of globalization is very multifaceted. Through multilateral cooperation, non-state roles, bilateral relations, and technological innovation, diplomacy is not only a tool for overcoming problems, but also for creating new opportunities for mutual progress. Without effective diplomacy, global challenges cannot be faced optimally.