Abstract: Gazella blacki was named by Teilhard and Young (1931) on the basis of the specimens from the Pliocene of Hefeng, Jingle District, Shanxi Province. The syntypus comprise 9 horn cores, 25 more or less complete mandibles and many broken limb bones. In 1938, Teilhard de Chardin P. and Trassaert M. referred a great number of specimens from Yushe Basin, Shanxi Province to this species and proposed its amended diagnosis. Since then, G. blacki has been considered as one of the typical elements in the Late Pliocene mammalian fauna of Northern China. After restudying the Yushe's materials assigned to the genus Gazella, I think that the so—called species G. blacki is mixed. Besides the species itself, it may contain G. sinensis and other new gazelle forms. In fact, G. blacki represented by the specimens of Hefeng is a valid species, and it is useful for dating the beds bearing it Therefore, it is necessary to clarify the conception and to give a revised diagnosis of this species by observing the Hefeng's samples. It is the purpose of this paper.