Arbitration is one of the most important means to resolve civil and commercial disputes between Mainland China and those jurisdictions under the Belt and Road Initiative. However, the arbitration system of Mainland China is relatively uncompetitive, and the most critical legal rules concerning arbitrators have more defects. Therefore, it is very necessary and urgent to have innovative lawmaking concerning arbitrators, which should include that average persons with legal capacity can normally be selected as arbitrators, that the parties have the right to determine the number of each arbitral tribunal, that co-abitrators can select the chairman of each arbitral tribunal unless agreed otherwise by the parties, that there exist default rules for the courts to appoint arbitrators when no effective mechanism between the parties takes place, that mandatory rules are established for arbitrators to be neutral, that adequate liability provisions for arbitrators are created.