A new species of the Amolops monticola group is described from Yunnan Huanglianshan National Nature Reserve, southern Yunnan, China. Morphologically, the new species is characterized by moderate body size (snout–vent length 38.3–40.8 mm in adult males and 62.3–63.1 mm in adult females), head longer than wide, nostril-to-snout tip distance slightly smaller than eye-to-nostril distance, pineal body present, tympanum distinct, vomerine teeth invisible in males and weak but visible in females, dorsolateral folds distinct, outer metatarsal tubercle absent, vocal sac and nuptial pad present in adult males, dorsal surface of head and body green with no or a few black dots, and a few large flat white tubercles on the posterior inferior flank. Genetically, the uncorrected genetic distance between the new species and other species of the A. monticola group ranged from 3.0% to 7.6% in 16S ribosomal RNA and from 7.2% to 17.1% in NADH dehydrogenase subunit 2 gene sequences. Currently, the new species is known only from its type locality in Lvchun County, Honghe Prefecture, Yunnan Province, China.