In the era of globalization, diplomatic relations are experiencing significant transformations that affect interactions between countries. Globalization is characterized by increasingly deeper economic, cultural and political integration, so that countries in the world become more interdependent. Modern diplomacy now operates in a more complex context, requiring countries to adapt quickly to dynamic changes at the global level. First of all, the growth of communications technology has become a major factor in diplomatic relations. With advances in information technology, countries can communicate instantly. Digital diplomacy now opens up opportunities for more efficient negotiations, facilitating dialogue between countries without geographical boundaries. For example, virtual meetings via video platforms allow diplomats to share information and decide important issues quickly. Second, globalization expands the scope of issues that need to be managed in diplomacy. Cross-border issues such as climate change, terrorism and international trade are now a major focus. Countries must work together to overcome these challenges, which requires a multilateral approach and strong cooperation. International conferences such as the COP on climate change or the G20 meeting show the importance of collaboration between countries to achieve sustainable solutions. Furthermore, non-state actors, such as non-governmental organizations (NGOs) and multinational corporations, also play an important role in today’s diplomatic relations. NGOs often serve as a bridge between civil society and government, giving a voice to various communities. Multinational companies, on the other hand, carry economic interests that often require diplomatic support to operate in foreign countries. In this context, economic diplomacy increased rapidly. Countries are now developing more proactive strategies in attracting foreign investment and creating a conducive environment for global business. Relations between countries are increasingly determined by mutually beneficial trade and investment agreements, such as free trade agreements. Apart from that, public diplomacy is an important element in building a country’s image. Countries are competing to strengthen their soft power through culture, education and tourism. Through cultural exchanges and educational programs, countries can create better understanding and build long-term relationships with other countries. The issue of sovereignty is also increasingly complicated in the era of globalization. When states rely on each other for various aspects, the question arises about how much sovereignty can be involved in international cooperation. With the increasing number of international organizations, countries often have to make compromises in domestic policies to meet global norms. Finally, security challenges also affect diplomatic relations. With increasing regional and global conflicts, countries must collaborate through collective security agreements. NATO and ASEAN are examples, where member countries work together to maintain stability and security in their respective regions. Therefore, diplomatic relations in the era of globalization are not just interactions between governments, but also reflect complex dynamics between various global actors. This transformation shows the importance of flexibility, adaptability and collaboration to create a better future for all countries on the international stage.