Objectives:
The purpose of this article is to identify the role of international diplomacy in shaping the outer Space Traffic Management.

Methods:
The theoretical research methods were used in this paper – analysis, synthesis, abstraction and generalization.

Results:
The article presents the potential possibility of not only gaining the public awareness in the area of space traffic management problems thanks to the international mandate of institutions such as the European Union (EU) or NATO, but also its attempt to indicate the role of European institutions in shaping international security in the context of the development of space traffic management at the global level.

Conclusions:
Taking into consideration all potential space threats and military and non- military issues of building international security we can find straight links of complexity with the outer space environment and multilateral diplomacy. It sems to be the most efficient tool to build resilience in the environment of international institutions of strategic status to establish space situational awareness of key importance for future global defence and deterrence. Taking a huge intensity of space traffic management, especially with the example of the tensed conflict in Ukraine since 24th February 2022 we are witnessing the new era of space technological resolutions. The awareness should also concern the possibility of technical achievement, as the example done by Chinese or Russians that can destroy satellites in orbit in case of the possible conflict scenario in the space.