A flexible OLED display device includes: a flexible substrate, a buffer layer, an OLED light emitting layer, and a thin film encapsulation layer; wherein a portion of the thin film encapsulation layer located in the non-display area has a thickness from a position close to the display area to a position away from the display area The flexible substrate and a portion of the thin film encapsulation layer located in the first bezel area and the second bezel area are bent along a direction away from the display surface.