Abstract: Based on the analyses of genera, species, and geological data, a study on the phytogeography of Araliaceae in the Gaoligong Mountains was carried out. The results are as follows: l)The Araliaceae flora in the region consist of 15 genera, 56 species, and 13 varieties. 2) At the level of genera most of Araliaceae in the Gaoligong Mountains originated from the tropics. The tropical genera of Araliaceae in the Gaoligong Mountains region are 66.7 (10 genera) while the temperate genera are only 33.3 (5 genera). The Arali-aceae flora of the Gaoligong Mountains is less affinities to that of the Mediterranean and Central Asia. 3) At the specific level the Araliaceae of the Gaoligong Mountains region is dominated by temperate species (88.4 of the total species).

Key words: Gaoligong Mountains