A new species of the genus Goniurosaurus is described from Libo County, Guizhou Province and Huanjiang County, Guangxi, China. Goniurosaurus liboensis sp. n. can be discriminated from other known congeners by its medium size, with adults measuring 103.2–110.3 mm snout–vent length; 23 precloacal pores in males; a posteriorly protracted nuchal loop six or seven scale rows in width; two or three internasals, eight or nine nasal scales surrounding nares; a greatly enlarged row of supraorbital tubercles; the granular scales of upper eyelids nearly equal in size as those on the top of head; deep axillary pockets; claws sheathed by four scales; chin, throat, thorax, and ventral surfaces of body and limbs white, immaculate; and three thin immaculate dorsal body bands between limb insertions. Natural history data and an expanded key to the genus Goniurosaurus are provided.