Diplomatic relations between developing countries play an important role in the current global context. With increasing interdependence between countries, diplomacy has become a key tool in achieving political, economic and social goals. One of the distinctive characteristics of this relationship is the desire to build multilateral solidarity and cooperation. Developing countries often face similar challenges, including poverty, political instability, and limited resources. Therefore, they tend to form strategic alliances to face common problems. For example, the G77 and ASEAN groups are platforms for these countries to strengthen their position in the international arena. In forums like these, they can exchange views on issues such as climate change, trade and human rights. Foreign direct investment (FDI) plays a crucial role in diplomatic relations between developing countries. Through favorable bilateral agreements, these countries are trying to attract investment from developed countries. For example, countries in Africa are seeking to collaborate with China, which has invested heavily in infrastructure, energy and technology. This not only helps economic growth, but also increases their diplomatic capacity in the eyes of the world. Involvement in international organizations is also an important aspect of these diplomatic relations. Developing countries are often involved in organizations such as the United Nations, where they can voice their interests and aspirations. Through negotiation and diplomacy, they can play a role in making decisions that influence global policy. On the other hand, the challenges that developing countries face in international relations are often caused by long-standing structural injustices. This aspect demands more active diplomatic steps to overcome the dominance of developed countries. For example, in the WTO (World Trade Organization), developing countries often fight against policies that tend to benefit rich countries. Meanwhile, technology is also an important factor in strengthening diplomatic relations. With increasingly digital communications, developing countries can collaborate more quickly and effectively. Forums such as international digital forums can facilitate dialogue between these countries and help them gain access to new technologies. In the cultural sphere, cultural and educational exchanges are a bridge for developing countries. Scholarship programs, student exchanges, and research collaborations create deeper ties between them. In this way, countries can share knowledge and experience, strengthening understanding of each other. Developing countries also have to face a dynamic geopolitical situation. Relations between competing great powers, such as the US and China, often influence the direction of developing countries’ foreign policies. In this context, they must be smart in navigating this relationship in order to continue to gain benefits without getting caught up in big power conflicts. Finally, climate change and environmental issues are now an important agenda in diplomatic relations. Many developing countries are affected by climate change without making a significant contribution to the problem. Therefore, they need international support in the form of technology, funding and collaboration. Green diplomacy is becoming an increasingly popular approach in this context. Through these innovative and collaborative approaches, diplomatic relations between developing countries are expected to achieve sustainable growth and strengthen their position on the global stage. Active engagement in diplomacy not only helps address domestic challenges, but also provides a voice in setting the international agenda.