Written by Chen I-Chen. Is Indigeneity a self-evident category? Or is “Indigenous” defined differently by the policies and politics of each nation-state? On June 28, 2022, a constitutional review of the Supreme Court’s debate on the Indigenous Status of the “Plains” peoples (the “Pingpu,” 平埔族群) shed light on the discussion surrounding Taiwan’s national recognition of Indigenous status. The “Plains” peoples, headed by the Siraya, had fought for more than three decades to have their Indigenous status recognised under the category of the “lowland” Indigenous peoples (平地原住民)”. As a crucial result of the long struggle for the Plains peoples’ legal status, the final judgement will be declared no later than this late November.