The crisis of the WTO Appellate Body started in 2017 and its situation continued to deteriorate into non-operation by the end of 2019. During the time, appeal arbitration became an alternative to the Appellate Body, from an early proposal from some experts, to bilateral arrangements between EU, Canada and Norway, and finally to multi-party arrangement among 23 members in 2020. This arrangement is established on the WTO appellate system with complete rules, providing procedures for specific appeal cases and possibly experience for the improvement of the WTO Appellate Body. It has become a mile stone for dealing with crisis by the international organization and developing international dispute settlement systems. China contributed to the establishment of the multi-party arrangement.