The invention relates to a power extraction winding inter-turn zero sequence protection method of power extraction reactors. The power extraction winding inter-turn zero sequence protection method ofpower extraction reactors includes the following steps: acquiring high-voltage reactor winding three-phase current I<.>1A, I<.>1B and I<.>1C and power extraction winding three-phase current I<.>2A, I<.>2B and I<.>2C; and calculating high high-voltage reactor winding zero sequence current 3I01=|I<.>1A+I<.>1B+I<.>1C| and power extraction zero sequence current 3I02=|I<.>2A+I<.>2B+I<.>2C| k13I01, wherein if 3I02>k13I01, and 3I02>2I0set, power extraction winding inter-turn protection has no time delay action; if 3I02>k13I01 and 3I02<2I0set and 3I02>I0set, power extraction winding inter-turn protection takes action through time delay t; and if 3I02<=k13I01, power extraction winding inter-turn protection does not take action. The power extraction winding inter-turn zero sequence protection methodand apparatus of power extraction reactors can improve the sensitivity of power extraction winding inter-turn failure, and cannot be influenced by the failure outside the power extraction high-voltage reactor region at the same time.