Abstract: A seat belt airbag module, which is an independent device, comprises a pouch which is designed to attach the seat belt by sliding the seat belt through a seatbelt channel and secure it by a fastener; a connector to connect the pouch and an inflator; an inflator which is installed in the seat back and linked to the crash sensing system. This seat belt airbag module can be attached and fastened to the seat belt by a simple sliding action and set in front of an occupant's body. The inflatable airbag is designed to inflate upward and forward so as to offer a cushion effect against the crash impact yet eliminate the potential danger of punching right toward the occupant's body as conventional airbags do.