Vehicle seat

A manufacturing method of a vehicle seat provided with a seat cushion constituting a seating surface and a seat back constituting a backrest,

• wherein the vehicle seat comprises:
• a seat back frame forming a structural member of the seat back;
• an airbag module supported on a side portion of the seat back frame on a vehicle outer side;
• a pad member covering the airbag module;
• and
• a skin member covering a surface of the pad member,
• wherein the method includes a step to prepare the seat back frame with the airbag module, a step to mount the pad member on the seat back frame, and a step to cover the surface of the pad member by the skin member,
• wherein the skin member is provided with a weakened part vertically extending on an edge part of the seat back on the vehicle outer side and a low-elasticity reinforcement part extending from a vicinity of the weakened part in a direction intersecting with the weakened part,
• wherein the low-elasticity reinforcement part is connected to a back side part of the of the skin member covering the backside of the pad member.