The Hucul horses, native breed of Carpathians, are valued for their strongly consolidated features, like high fertility, fecundity and foaling rate. The relation between the inbred and the reproduction results of Hucul mares was analyzed using two-way ANOVA and one-way ANOVA with regression. The inbreeding level is negatively correlated with fertility and fecundity. Increase of inbred level of 1% causes loss of 0.98% fertility and loss of 1.03% fecundity. Average fertility was equal to 88.5% and fecundity 86.2%. There is no relation between inbred and foaling rate. The average foaling rate was very high, equal to 98.1%.