Abstract: The present application specifically relates to an electro-optic modulator, comprising: a substrate; a first dielectric layer, located on the substrate; an opening being formed in the first dielectric layer, and the opening exposing a portion of the substrate; a waveguide, located on the substrate and located at the bottom of the opening or below the opening; a first electrode, located in the first dielectric layer, located on one side of the waveguide, and spaced apart from the waveguide; a second electrode, located in the first dielectric layer, located on the side of the waveguide distant from the first electrode, and spaced apart from the waveguide; and an organic electro-optic material layer, at least located in the opening and at least covering the waveguide.