This article analyzes the suspension of the WTO Appellate Body from December 10, 2019, which had a serious impact on the global trade dispute resolution system, as an institutional crisis occurred due to criticism by the US regarding precedent creation, and obiter dicta practices. The work examines the political, institutional, and technical causes of this crisis, based on WTO documents and analysis by scientists. As a result, delays in dispute resolution, uniform application of law have weakened, and difficulties for developing countries have increased. The study emphasizes the need for reforms to restore the effectiveness of the WTO dispute resolution system.