The present invention relates to a condensed ring group azacyclobutyl triazole derivative, a preparation method therefor and use thereof in medicine. In particular, the present invention relates to a novel condensed ring group azacyclobutyl triazole derivative as represented by general formula (I), a preparation method therefor, a pharmaceutical composition comprising the derivative, use thereof as a therapeutic agent, in particular as an oxytocin antagonist, and use thereof in the preparation of a medicament used for treating or preventing a disease or a condition that is known or can exhibit a beneficial effect of inhibiting oxytocin. The definition for each substituent in general formula (I) is the same as that in the description.