Abstract: Destruction by termites to living tree trunk is generally negligible and not recorded in Guizhou Province. In this paper, five new species belonging to the genus Glyptotermes and Coptotermes are reported from living trees, Prunus persica, Liquidambar formosana, Ficus microcarpa etc. The latex termite Coptotermes is very destrective to living tree-trunk. The comparison of the new species are given as the following. All measurements are in millimeters. All the type specimens are kept in the Guangdong Institute and a part of the paratype specimens deposited separately in Guizhou Institute of Forestry.1. Glyptotermes guizhouensis Ping et Xu, sp. n. The soldier of this new species has a narrower and longish head-capsule which may be easily distinguished from all the species of head-width 0.08—1.10 hitherto found in China. The soldier resembles that of G.almorensis Gardner from India in the head-width. But G. almorensis has a shorter head, head-width index 0.65-0.75 and thicker mandible, length of left mandible 0.67—0.77. Type locality: Rongjing County (25°N, 108°E). Soldiers (holotypeand paratypes) nymphs from type-series (I. No. E 7768). Collected by Xu Chungui et al. May 30, 1983 in tree (Ficus microcarpa)2. Glyptotermes succineus Ping et Gong, sp. n. The soldier of the new species resembles that of G. latithorax Fan et Xia in the body size. It differs as follows: 1. Pronotum narrower, width 1.03—1.10, distinctly narrower than the head; instead of broader, width 1.22—1.37; distinctly broader than the head. 2. Posterior margin of postmentum nearly concave instead of convex. 3. Mandibles shorter than half the head-capsule instead of longer.Type locality: Libo County (25°N, 107°E) Soldiers (holotype and paratypes) nymphs from type-series (Ⅰ. No. E 7730). Collected by Gong Cai et al. Jun. 8, 1983 in wind breakage tree.3. Glyptotermes ficus Ping et Xu, sp. n.The soldier of the new species resembles that of G. hesperus Gao et al. in the head-width. It differs as follows: 1. Headcapsule shorter, length of head-capsule 2. 20 intend of 2.35—2.51. 2. Anterior area ofpostmentum nearly square instead of trapezoid. 3. Posterior margin of pronotum in middle slightly notched instead of not notched. 4. The length of hind tibia 1.04—1.10 instead of 0.90—0.96.Type locality: Rongjinang county (25°N,108°E) Soldier (holotype and paratypes) and nymphs from type-series (Ⅰ. No. E 7715) Collected by Xu Chungui et al. May 31, 1983 in tree (Ficus microcarpa) 4. Coptotermes ochraceus Ping et Xu, sp. n.The soldier of this new species can be easily distinguished from the know China species C. formosanus Shiraki by its opening slope of frontal gland in profile view is oblique. It resembles C. havilandi Holmgren, but its width of pronotum 0.90—1.02 instead of 0.70—0.85.Type locality: Xingyi County (altitude 700m, 25°N, 105°E). Soldiers (holotype and paratypes) and workers from type series (Ⅰ. No. T 5008).Collected by Ping May 22, 1979 in living tree (Prunus persica).5. Coptotermes rectangularis Ping et Xu, sp. N.The soldier of this new species can be easily distinguished from the known China species C. formosanus Shiraki by its: 1. The length of left mandible generally 0.95. 2. The length of head to lateral base of mandibles generally 1.43. 3. The width of pronotum 0.75.Type locality: Congjiang County (25°N, 108°E). Soldiers (holotype and paratypes) and workers from type-series (Ⅰ. No. E7690). Collected by Ping et al. May 28, 1983 in tree (Liquidambar formosana).