A flexible display panel and a display apparatus are provided. The flexible display panel includes a flexible substrate, a first buffer layer disposed on one side of the flexible substrate, a thin-film transistor layer disposed on a side of the first buffer layer away from the flexible substrate, a planarization layer disposed on a side of the thin-film transistor layer away from the flexible substrate, and an organic light-emitting layer disposed on a side of the planarization layer away from the flexible substrate, where the flexible display panel includes at least one bending area, and in the at least one bending area, at least one groove is formed in at least one of the first buffer layer and the thin-film transistor layer, and W ≥ n 180 ° ⁢ π ⁢ ⁢ R .