The utility model discloses a can general natural gas engine nozzle flow testing arrangement, including compressed air tank, multi -functional pressure stabilizing cavity, original gas burner, transition piece, constant voltage power supply, controller and flowmeter. Multi -functional pressure stabilizing cavity is including dismantling the epicoele and the cavity of resorption of connection, and the epicoele is equipped with pressure stabilizing cavity, flowmeter interface, the interface is gone up to the transition piece and the interface is gone up to gas burner no. 1, the cavity of resorption is equipped with down the pressure stabilizing cavity, lower interface and the gas burner interface once of the interface that admits air, transition, be equipped with standing groove, admission line and the pipeline of giving vent to anger in the transition piece. The one end of controller is connected with constant voltage power supply, and the other end of controller is connected with original gas burner no. 1 and two detachable electricity of original gas burner in proper order. The utility model discloses can be under engine off -line state, through analog signal drive gas burner, utilize the flow of flow meter test gas burner, the commonality is strong moreover, can be used for the evaluation of multiple gas nozzle flow state.