The present invention provides a lampshade structure, an unmanned aerial vehicle (UAV) arm, a UAV and a movable platform. The lampshade structure (100) includes: a lampshade body (10), the lampshade body (10) including a first light-transmitting surface (11) close to a light-emitting element (90), and a second light-transmitting surface (12) away from the light-emitting element (90). The first light-transmitting surface (11) is provided with a scattering structure (20) for outwardly refracting light emitted by the light-emitting element (90). In the embodiments of the present invention, light emitted by the light-emitting element is refracted outwardly by the scattering structure arranged on the lampshade body, to expand a light-emitting angle and an irradiation direction of the light-emitting element, thereby obtaining sufficient light in a desired direction.
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