Abstract: The present disclosure discloses a strain of highly organic zinc-enriched Bifidobacterium animalis capable of promoting growth and reproductive development, belonging to the technical field of microorganisms. The B. animalis CCFM1230 screened by the present disclosure can efficiently enrich inorganic zinc and convert same into organic zinc, which is better absorbed and utilized by organisms, and effectively promotes growth and reproductive development. Animal experiments have proved that zinc-rich B. animalis can promote the growth and reproductive development of male rat pups, exert higher biological activity than inorganic zinc, and meet the physiological requirements of zinc supplementation. According to the present disclosure, the B. animalis CCFM1230 can efficiently enrich inorganic zinc for the preparation of a probiotic preparation capable of promoting growth and reproductive development, and thus has great application prospects in the field of food or medicine.