A lampshade structure (100), comprising: a lampshade body (10), the lampshade body comprising 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. The first light-transmitting surface is provided with a scattering structure (20) for outwardly refracting light emitted by the light-emitting element. The lampshade structure is able to expand a light-emitting angle and an irradiation direction of the light-emitting element, thereby achieving sufficient light in a desired direction. An unmanned aerial vehicle arm, an unmanned aerial vehicle and a movable platform, all having the lampshade structure above.
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