The utility model discloses a small -size fuel gas heating furnace safety ignition can be used to all kinds of small -size heating furnace ignition operation in oil field. Comprising a housin, a battery, the circuit board of striking sparks, gaseous sensor and the ignitor electrode of detecting, aspiration pump and gas bomb still be equipped with in the casing, gaseous inductor and the sensor control scheme board that detects the sensor seals respectively in gas detects seal box and circuit board seal box, the gaseous surplus gas detection who detects the sensor surveys the button and is connected with aspiration pump and sensor control scheme board electricity respectively, the battery is surveyed the sensor for the circuit board gentleness physical examination of striking sparks and is provided the power, sensor control scheme board is established ties in the circuit of striking sparks of the circuit board of striking sparks, fuel switch is connected, is equipped with among them to the gas bomb with the gas bomb outlet duct, the ignitor electrode is fixed on the burner port in gas bomb outlet duct the place ahead, and intake pipe and external intercommunication are passed throughwith the gaseous seal box intercommunication that detects, the air inlet of aspiration pump in the gas outlet of aspiration pump.