An organic light-emitting display panel, includes an array substrate including a flexible substrate and a thin film transistor layer placed on the flexible substrate; an organic light-emitting component placed on the array substrate, including a plurality of light-emitting units; a packaging layer placed on aside of the organic light-emitting component away from the array substrate, the packaging layer including a first inorganic packaging layer and a first organic packaging layer, the first inorganic packaging layer and the first organic packaging layer being placed in order on a side of the packaging layer along a direction away from the array substrate; wherein the first organic packaging layer includes a plurality of scattering particles, refractive indexes of the first inorganic packaging layer, the first organic packaging layer and the scattering particle are defined as n1, n2 and n3 respectively, and n2 is different from n3.