The utility model discloses a fire gun fixed bolster, including fixed subassembly and coupling assembling, fixed subassembly includes horizontal pole and sheer pole, goes up horizontal pole and sheer pole and connects through at least two fastening filament poles, goes up and is equipped with the clearance between horizontal pole and the sheer pole, coupling assembling connects the horizontal pole and laminates mutually with the sheer pole including connecting horizontal pole and vertical pole, and the connection horizontal pole is passed to the one end of fastening filament thick stick, the vertical pole with be connected horizontal pole fixed connection, be equipped with the tube bank on the vertical pole. The utility model provides a pair of fire gun fixed bolster adopts the big gun head of the fixed fire gun of mode hung, and the atress is stable, can resist the fire gun head at the rotatory in -process that sprays, and the recoil of production prevents that big gun head side direction from rocking, simultaneously, this support simple structure, easily dismouting does benefit to the maintenance maintenance in later stage, and it is more convenient to use.