A small night lamp with spreading fragrance function includes a bottom shell, a fan, a transparent supporting base, a light source and a transparent encloser. The bottom shell is provided with an accommodating groove, the accommodating groove is provided with a first bottom wall and a groove opening, the first bottom wall is provided with a number of air inlet holes. The fan is arranged above the accommodating groove. The inner wall surface of the transparent supporting base is provided with a perforated board, the top surface of the perforated board is provided with a groove for an essential oil piece. The light source is arranged in the transparent supporting base.