A device for coupling a curtain airbag to a vehicle body, the device including a bracket made of a metallic material and having an upper end installed on a vehicle body and disposed adjacent to a roof of a vehicle, and a lower end extending downward and having a through-hole, and a connection tab having a lower end coupled to a curtain airbag, having a main body extending upward, and having an upper end extending upward, penetrating the through-hole of the bracket, and coupled to the main body.