A saddle type-vehicle with an airbag device, wherein the airbag device comprises: an inflator; an airbag adapted to be expanded by gas discharged from the inflator; and a retainer accommodating the airbag, wherein the airbag device has a handle stem attached to a head pipe of a saddle-type vehicle so as to be able to turn, the retainer is disposed above the handle stem, the handle stem is secured to a steering shaft of the saddle-type vehicle so as to be not able to relatively turn, in a state in which an upper end of the steering shaft inserted into the head pipe is inserted thereinto and in this manner, the steering shaft turns around an axial center of the head pipe that serves as a turning center, along with the handle stem in response to an operation of turning a handlebar of the saddle-type vehicle, a handle post is attached to an upper end of the handle stem, and two handle holders are provided in an upper surface of the handle post in an aligned manner in a left-right direction of the vehicle, and the retainer is attached to the handle holders, the inflator and the retainer are disposed as separate members and are coupled to each other with a gas path, and the retainer is provided on a turning axis of the handle stem in a side view of a vehicle, characterized in that the inflator is attached to the head pipe 14 via a stay of the saddle-type vehicle, and the stay extends obliquely forward in a plan view of the vehicle beyond the head pipe, the inflator is attached to a front end portion of the stay, the inflator is disposed in the vicinity of the head pipe and is disposed inside the vehicle beyond the outer surface of a front cover, the inflator is located on a left side of the head pipe in the left-right direction of the vehicle, a key cylinder and a handle locking mechanism are provided on a right side of the head pipe, and the inflator passes through an upper end of the head pipe in front of the head pipe and located below a plane that perpendicularly intersects a turning axis of the handle stem in a side view of the vehicle, a connection pipe is provided at a location at which the connection pipe overlaps the head pipe in a side view of the vehicle, the gas path is configured, with a tube connecting the connection pipe to the retainer, and the gas path is configured to have enough slack in a state in which the handlebar is held in a straight traveling direction, when the handlebar is turned left an upper end of the gas path is pulled to the right by the handle holder provided on the left side of the vehicle, the gas path is connected to the connection pipe from the lower surface of the retainer through the lower side of the handle post, the handle stem, and the vicinity of the side surface of the head pipe, the gas path is provided with enough slack, and motion of the handlebar is not restricted even in a case in which the handlebar is turned to a limit. an inflator; an airbag adapted to be expanded by gas discharged from the inflator; and a retainer accommodating the airbag, the inflator and the retainer are disposed as separate members and are coupled to each other with a gas path, and the retainer is provided on a turning axis of the handle stem in a side view of a vehicle, characterized in that the inflator is attached to the head pipe 14 via a stay of the saddle-type vehicle, and the stay extends obliquely forward in a plan view of the vehicle beyond the head pipe, the inflator is attached to a front end portion of the stay, the inflator is disposed in the vicinity of the head pipe and is disposed inside the vehicle beyond the outer surface of a front cover, the inflator is located on a left side of the head pipe in the left-right direction of the vehicle, a key cylinder and a handle locking mechanism are provided on a right side of the head pipe, and the inflator passes through an upper end of the head pipe in front of the head pipe and located below a plane that perpendicularly intersects a turning axis of the handle stem in a side view of the vehicle, a connection pipe is provided at a location at which the connection pipe overlaps the head pipe in a side view of the vehicle, the gas path is configured, with a tube connecting the connection pipe to the retainer, and the gas path is configured to have enough slack in a state in which the handlebar is held in a straight traveling direction, when the handlebar is turned left an upper end of the gas path is pulled to the right by the handle holder provided on the left side of the vehicle, the gas path is connected to the connection pipe from the lower surface of the retainer through the lower side of the handle post, the handle stem, and the vicinity of the side surface of the head pipe, the gas path is provided with enough slack, and motion of the handlebar is not restricted even in a case in which the handlebar is turned to a limit.