A gas generator with a quick-release joint, comprising: a gas generator body, one end thereof having an assembly part, the assembly part being a cylindrical shape, and the assembly part having a gas discharge part and a fixed convex column protruding from the gas generator body in a radial direction; and a quick-release joint comprising a socket member and a fixing ring, the socket member being rotatably positioned on the assembly part, the socket member having a first groove and a rotational groove, the first groove being disposed along an axial direction of the socket member, one end of the first groove being connected to one end of the socket member sleeved on the assembly part, another end of the first groove being connected to one end of the rotational groove, the rotational groove being disposed along a first rotational direction, and another end of the rotational groove being a terminal end; the fixing ring being rotatably positioned on the socket member, the fixing ring having a second groove and a rotational sliding surface, one end of the second groove being connected to one end of the fixing ring sleeved on the socket member, another end of the second groove being connected to one end of the rotational sliding surface, the rotational sliding surface being disposed along a second rotational direction opposite to the first rotational direction, and another end of the rotational sliding surface being a terminal end; the gas generator being characterized in that, another end of the rotational sliding surface adjacent to the rotational sliding surface being provided with a fixed convex part with a raised disposition. a gas generator body, one end thereof having an assembly part, the assembly part being a cylindrical shape, and the assembly part having a gas discharge part and a fixed convex column protruding from the gas generator body in a radial direction; and a quick-release joint comprising a socket member and a fixing ring, the socket member being rotatably positioned on the assembly part, the socket member having a first groove and a rotational groove, the first groove being disposed along an axial direction of the socket member, one end of the first groove being connected to one end of the socket member sleeved on the assembly part, another end of the first groove being connected to one end of the rotational groove, the rotational groove being disposed along a first rotational direction, and another end of the rotational groove being a terminal end; the fixing ring being rotatably positioned on the socket member, the fixing ring having a second groove and a rotational sliding surface, one end of the second groove being connected to one end of the fixing ring sleeved on the socket member, another end of the second groove being connected to one end of the rotational sliding surface, the rotational sliding surface being disposed along a second rotational direction opposite to the first rotational direction, and another end of the rotational sliding surface being a terminal end; the gas generator being characterized in that, another end of the rotational sliding surface adjacent to the rotational sliding surface being provided with a fixed convex part with a raised disposition.