Currently, there is an unacceptably high rate of decline in the biodiversity of vertebrates, and, first of all, amphibians. This situation requires emergency measures to save the endangered species of these animals. One of such measures is the development of assisted reproductive technologies, including cryopreservation and cryobanking of reproductive cells (sperm and oocytes). However, cryopreservation technologies, successfully used for banking sperm, have not yet been adapted for cryobanking amphibian oocytes.