The invention discloses a short-circuit current zero-point prediction method and a short-current current phase selection breaking control method. The short-current current phase selection breaking control method comprises: S1, a current signal is collected in real time and whether a short-circuit fault occurs is determined; if so, a S2 is executed; and if not, current signal collection is carried out continuously; S2, a short-circuit current is processed by using a similar-prony method to obtain a short-circuit current zero point; S3, according to the short-circuit current zero point, opening motion time of a circuit breaker, and optimal arcing time, delay time of a distance target phase is obtained; S4, whether a relay protection instruction arrives is determined; if so, switch breaking is carried out directly; and if not, delay counting down is carried out; S5, whether the delay counting time is zero is determined; if so, a S6 is carried out; and if not, counting down is carried out continuously; S6, after delay ends, whether a relay protection instruction reaches is determined again; if so, a S7 is carried out; and if not, the breaking operation is withdrawn; and S7, disconnecting of a circuit breaker is controlled and phase selection breaking is realized after the optimal arcing time.