Abstract: Implementing whole-process people's democracy in the substantive resolution of administrative disputes is vital for safeguarding and enhancing the independence, fairness, and credibility of administrative adjudication. Advancing institutional arrangements such as participatory interaction mechanisms, external oversight mechanisms, and litigation service mechanisms, and strengthening the public's substantive participation in administrative adjudication, provides a feasible path for integrating wholeprocess people's democracy into all stages of administrative adjudication and promoting the substantive resolution of administrative disputes. To this end, administrative adjudication must uphold the Party's leadership as a fundamental political principle, conduct comprehensive review of challenged administrative acts through a people-centered approach, improve the system of legal application through individual cases, and enhance the realization of judicial democracy through digital reform. These efforts help meet the public's growing expectations for strict and impartial justice.