Packaging structure and method and light-emitting device

The invention provides a packaging structure and method and a light-emitting. The packaging structure comprises a base plate, a cover plate, a light-emitting device, and a packaging glue part, wherein a first cover plate surface of the cover plate and a first base plate surface of the base plate are oppositely arranged, and an interval is arranged between the first cover plate surface and the first base plate surface, the light-emitting device is arranged in the interval, and is arranged on the first base plate surface in a contact mode; the first cover plate surface and/or the first base plate surface comprise rough areas which are arranged at the periphery of the light-emitting device, the packaging glue part is arranged in the interval, part of the packaging glue part and the rough areas are arranged in a contact mode, and the first cover plate surface, the first base plate surface and the packaging glue part form an airtight space which encircles the light-emitting device. The packaging structure is capab