Provided is a phase-shifting type full-bridge inverter. The phase-shifting type full-bridge inverter comprises a full-bridge circuit, a series resonance circuit, a phase-shifting pulse-width modulation (PWM) unit and a spare current zero-crossing point judgment unit. The full-bridge circuit is composed of a first transistor switch component, a second transistor switch component, a third transistor switch component and a fourth transistor switch component, wherein the first transistor switch component and the second transistor switch component form an advanced arm, and the third transistor switch component and the fourth transistor switch component form a lagged arm. The series resonance circuit is composed of an inductor and a capacitor in series connection mode. The phase-shifting PWM unit is used for outputting and controlling pulse signals. The spare current zero-crossing point judgment unit receives feedback current of the series resonance circuit, sends pulses after performing zero-crossing point judgment on current in the series resonance circuit and before zero crossing, and these pulses form synchronous signals supplied to the PWM control unit. The PWM control unit controls turn-off time of the lagged arm according to the synchronous signals. According to the structure, the lagged arm of the full-bridge circuit in the phase-shifting type full-bridge inverter is led to be turned off before current crosses the zero point, so that current at the turn-off time is far smaller than the current peak value, and loss of the transistor switch components at the turn-off time is reduced.