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 (R1), 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 (R2) opposite to the first rotational direction (R1), 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 (R1), 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 (R2) opposite to the first rotational direction (R1), 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. <EOS>