A vehicle includes laminated glass located between a vehicle interior and an outside, and an on-vehicle radar device fixed to an inner surface of the laminated glass, a rear-view mirror, or a ceiling. The laminated glass includes an innermost glass layer, an outermost glass layer, and an intermediate resin layer. The on-vehicle radar device includes an antenna part that includes a transmitting antenna for transmitting a transmission wave. Reflection of the transmission wave on the laminated glass will be suppressed by selecting optimum values for the incident angle of the transmission wave on the innermost glass layer and the refractive index and thickness of each layer.