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The invention discloses a gas cooker igniter zero-second ignition realization circuit. A power supply is switched on by virtue of a power switch, so as to supply power to the circuit, a micro switch is closed when a mechanical knob is pressed down, an absorption valve is compressed when the mechanical knob rotates, so as to open gas source, the circuit is directly simultaneously connected with a boosting circuit, an ignition coil and a delay circuit by virtue of the micro switch, and meanwhile the boosting circuit is connected with the ignition coil, so that one current reaches the ignition coil instantly and another current after being boosted by virtue of the boosting circuit reaches the ignition coil, thus realizing gas cooker zero-second ignition; and meanwhile the last current is used for charging the capacitor of the delay circuit, after ignition is finished, the mechanical knob is released, the micro switch breaks, and the capacitor discharges and current is amplified and supplied to the absorption valve by virtue of an amplifying circuit, the absorption valve actuates within delay time set by the delay circuit, in the delay time, a thermocouple senses fire and generates a thermoelectromotive force, after the delay time is finished, the capacitor stops discharging, and the thermoelectromotive force is utilized to maintain the actuation state of the absorption valve.