Abstract: This invention relates to a safety gas flow regulator and in particular to one having a body portion formed with a first seat and a second seat, a safety valve engaged with the second seat, a tubular member having two holes being designed so that their center lines intersect each other at a point, a ball disposed in the tubular member, an exhaust mechanism engaged with the first seat, a plunger rod extending downwardly through the exhaust mechanism, a turning knob located on top of the exhaust mechanism, and a cap threadedly engaged with a neck of the turning knob and the top end of the plunger rod.