Diplomatic relations between developing and developed countries have complex and varied dynamics. In the context of globalization, these interactions become increasingly important for understanding how social, economic and political conditions influence each other. Diplomats from developing countries often face different challenges compared to developed countries in managing bilateral and multilateral relations. First, the economic aspect is one of the main focuses. Developing countries often engage in trade agreements that are more favorable to developed countries, which have greater economic power. Raw commodities from developing countries are often purchased at low prices, while developed countries can produce finished goods with added value. Therefore, dialogue regarding trade justice is very crucial. Developing countries need to negotiate fairer terms in trade agreements to increase the competitiveness of their products. Second, foreign aid is an important element in this relationship. Developed countries often provide humanitarian, technical, or financial assistance to developing countries. However, there are concerns that the aid could cause dependency. In diplomacy, developing countries must be able to encourage developed countries to focus more on sustainable development rather than just short-term assistance. This sustainable approach could include developing infrastructure or increasing local capacity. Furthermore, the issue of climate change is also a bridge and challenge in diplomatic relations. Developed countries, which have historically high carbon footprints, are expected to take more responsibility in addressing the climate crisis. In contrast, developing countries are often the victims of the impacts of climate change, even though their contribution to global emissions is much smaller. International agreements such as the Kyoto Protocol and the Paris Agreement demonstrate the need for collaboration, where developed countries are expected to support environmentally friendly technologies and practices that are accessible to developing countries. In the security sector, developing countries often depend on developed countries in terms of technology and defense strategies. However, this dependency can create tensions as developing countries seek to strengthen their sovereignty. Diplomatic relations in this context need to strike a balance between security collaboration and respect for national integrity. Additionally, educational cooperation and cultural exchange are often overlooked in diplomatic discussions. Scholarship programs, student exchanges and research collaborations are effective ways to increase understanding between people on both sides. By exploring knowledge exchange, both groups can learn from each other’s best practices and strengthen social relationships. Recent trends show that developing countries are increasingly active in international organizations such as the G20 and BRICS, indicating a shift in global power. Through this platform, developing countries can express their interests and influence global policy. This collaborative approach enables the creation of a more inclusive ecosystem on the world stage, giving a voice to previously marginalized countries. Technological aspects are also an important driver in this relationship. Developed countries have better access to innovation and advanced technology, however, in the digital era, developing countries are starting to explore the use of technology to increase their competitiveness. Cooperation in the field of information and communication technology can accelerate development in developing countries. Sustainability in diplomatic relations is driven by the values of mutual respect, equality and understanding. Developed countries are expected to listen and provide space for the voices of developing countries, while developing countries need to show the capacity to contribute positively to global problems. Open dialogue and strategic partnerships will be the key to building a better and more harmonious future.