Kon Ka Kinh National Park has the endemic and rare genetic resources of plants and animals but has not much studied. The article is the first results of species composition and distribution according to elevation and biotope of reptiles in Kon Ka Kinh National Park, Gia Lai province. The results acknowledged 47 species belonging to 2 orders, 11 families, 37 genus. Besides, 19 new species were added for the checklist of reptile in the area. The authors studied the distribution features of reptile with 3 levels of elevation and 6 types of biotopes. The results showed that, from 900 to 1300m, there are the biggest number of species distributed. And below 900m, there are the smallest number of species. The biggest number of species distributes in the biotopes of primary forest and secondary forest and the smallest numbers of species distributes in the biotopes of field.