中国积极倡导的WTO《促进发展的投资便利化协定》在透明度、精简行政程序等方面，实现了历史性的制度创新。鉴于协定尚未正式生效，加之“违反之诉”无法量化、WTO争端解决机制（DSB）本身陷入困境的多重制约，投资便利化争端能否适用DSB面临挑战。为解决上述难题，中国应当推动开放式诸边协定进程，以突破协商一致的束缚，先在部分成员方之间生效。厘清争端的具体来源同样必要，然而仍有疑难争端难以甄别，需要运用一般法律原则、善意原则进行解释。此外，需要发挥多边临时上诉仲裁机制的替代性作用。在肯定DSB适用投资便利化争端的同时，并不排除传统的投资者—国家争端解决机制（ISDS）在解决投资保护争端方面继续发挥作用，与DSB形成相辅相成、相互策应的关系。

The WTO Investment Facilitation for Development Agreement, actively advocated by China, has achieved historic institutional innovations in areas such as transparency and streamlining administrative procedures. Given that the agreement has not yet formally entered into force, coupled with the multiple constraints posed by the inability to quantify “violation complaints” and the WTO Dispute Settlement Body (DSB) being mired in difficulties, the applicability of the DSB to investment facilitation disputes faces significant challenges. To address these challenges, China should promote an open plurilateral agreement process to overcome the constraints of consensus decision-making, enabling the agreement to enter into force among a subset of members. Clarifying the specific sources of disputes is equally essential, though some complex disputes remain difficult to identify and may require interpretation through general legal principles and the principle of good faith. Furthermore, the alternative role of the MPIA should be leveraged. While affirming the applicability of the DSB to investment facilitation disputes, the Investor-State Dispute Settlement (ISDS) should not be excluded from continuing to play a role in resolving investment protection disputes. This would create a complementary and mutually reinforcing relationship with the DSB.