There is disclosed a transparent display device including: a transparent display panel, a first optical structure fixed on a light incidence side of the transparent display panel, and a plurality of light sources arranged on a side of the first optical structure, wherein there is a scattering lens structure arranged on a side of the first optical structure facing away from the transparent display panel and a refractive index of a medium between the first optical structure and the transparent display panel is less than a refractive index of the first optical structure.