Objectives: For the purpose of developing Korean herbalogy of the plants belonging to Crassulaceae in Korea, the literatures of the successive generations have been thoroughly investigated to prepare this article. Methods: The examined herbalogical books and research papers which published at home and abroad. Results: 1. There were totaled to 6 genera and 39 species in Crassulaceae in Korea and among them medicinal plants are 5 genera, 14 species, some 36% in total. 2. Sedum genus is main kind enough that it has 20 species among 39 species in the Crassulaceae, of which medicinal plants are 9 species. 3. The herb is the main medicinal parts of medicinal plants in the Crassulaceae which is used in 14 species. 4. According to nature and flavor of medicinal plants in the Crassulaceae, they were classified into neutral 12 species; sour taste 14 in the order. 5. According to meridian propism of medicinal plants in the Crassulaceae, they were classified into liver meridian 13 species. 6. According to the properties and principal curative action in the Crassulaceae, they were classified into drugs for detoxicant 19 species, drugs for styptic 18, drugs for detumescence 14 in the order. 7. The number of toxic species in the Crassulaceae was examined to be 3 species. Conclusions: There were totaled to 6 genera and 39 species in Crassulaceae in Korea and among them medicinal plants are 5 genera, 14 species, some 36% in total.