In recent years, Qatar has been seeking to play a serious and distinctive role in the field of soft power in the regional arena compared to other countries in the Middle East. One of the areas in which Qatar plays a role in the field of soft power is diplomacy, especially mediation diplomacy. This country plays a role as a mediator in regional conflicts and has been able to ensure its security and stability while playing an active role in regional issues, especially the Israel-Palestine issue. Qatar is undoubtedly at the heart of efforts for mediation and humanitarian aid in the Gaza War 2023. The main question of the research is what is Qatar's diplomacy like in the Israel-Palestine conflict, especially in the Gaza War 2023? This research, using the descriptive-analytical method and the theoretical basis of Niche diplomacy, seeks to better understand the role and impact of the country in this conflict by examining Qatar's mediation and humanitarian aid to Gaza. Findings of this study show that Qatar, using a combination of diplomatic and economic tools, has been able to play a significant role in the Israeli-Palestinian conflict, especially the 2023 Gaza War. This role includes mediation between the parties involved and activity in providing humanitarian aid to Gaza.