A packaging device for a windscreen wiper blade has a housing configured to receive the blade, having a first support surface configured to contact a portion of an upper part of the blade, a second support surface configured to contact a first portion of a lower part of the blade, a third support surface configured to contact a second portion of the lower part of the blade, a centering means, and a hooking means for hanging the packaging device vertically. The centering means blocks the blade at the center of the housing when the packaging device is hung. The first support surface extends opposite an area situated between the second support surface and the third support surface, and the first, second, and third support surfaces together immobilize the blade inside the housing in a position that is at least partially straightened out relative to a resting position of the blade.