Abstract: The polymorphic species Actinidia kolomikta(Maxim. Rupr.) Maxim., which with two discontinuous areas, is inherently sensitive to local changes in habitat and it strictly grows in Mixed Coniferous and Broadleaved Forest environments either in low altitudes of North-east Asia or in high altitudes of South-west China. According to its eco-geographical distribution and its affnities, it was pointed out that this species might be considered to have originated in high altitudes of Southwest China. The formation of its typical North-eastern Asia and South-west China discontinuous distribution pattern has been made by the driving force of the episodically environmental changes in Quaternary. And, in this paper the author has disscused the phytogeographic significances of its present distributional pattern.

Key words: Actinidia kolomikta,, eco-geography, phytogeography