The present invention provides a film packaging structure for an OLED, an OLED device, and a display apparatus. The film packaging structure for an OLED comprises a flexible film for packaging an OLED unit. The flexible film comprises at least one layer of inorganic film, and at least one layer of organic film which is alternately stacked with the at least one layer of inorganic film. Each layer of organic film in the at least one layer of organic film is an integral film, and each layer of inorganic film in the at least one layer of inorganic film comprises a plurality of non-connected inorganic film segments. The OLED film packaging structure, the OLED device and the display apparatus utilize inorganic films and organic films which are alternately stacked with the inorganic films. The inorganic films use a non-connected structure, and achieve better water resistance performance.