The utility model discloses an alternating current electrode-type water level detection control circuit, comprising a transformer. A power supply is connected with a power supply indication circuit, an upper limit water level sensor circuit and a lower limit water level sensor circuit in parallel through the transformer. The powers supply indication circuit indicates that whether the power supply supplies power normally or not. The upper limit water level sensor circuit detects that whether a water level exceeds an upper limit or not. The lower limit water level sensor circuit detects that whether the water level exceeds a lower limit or not. Two ends of an upper limit water level electrode in the upper limit water level sensor circuit are provided with alternating current. A lower limit water level electrode probe in the lower limit water level sensor circuit is provided with alternating current. The beneficial effects of the alternating current electrode-type water level detection control circuit are that the water level electrodes provided with alternating current cannot be ionized by water and not easy to corrode, thereby having a long service life; the water level electrodes control a base electrode of a bidirectional triode thyristor, and when the electrodes are immersed in water, a rectification bridge and follow-up circuits are uncharged, so that power consumption is low and safety is achieved; and the alternating current electrode-type water level detection control circuit is simple, can effectively control the water level of a water storage tank, and can give out an alarm or motion signal when the water level reaches the upper/lower limit.