Passenger protection apparatus

A seat belt (3) is wound up in a passenger protection apparatus (10). An airbag to be inflatable is at a position of a shoulder belt of the seat belt (3) by being folded like a belt in the passenger protection apparatus (10). The passenger protection apparatus (10) includes a fabric member which configures a bag-like member of the airbag and a partition wall fabric. The partition wall fabric has portions respectively connected to first and second parts of the fabric member and partitions an inside of the bag-like member into a central inflatable portion and supporting inflatable portions each of which is located between a passenger-side surface of the fabric member and a fabric formed of the central inflatable portion. The first and second parts configure inner surface of the bag-like member and hold the seat belt (3). The second part is configured to face a passenger and opposite to the first part.