1994年，中国科学院第六届“竺可桢”奖，个人奖
1996年，中国科学院方树泉青年科学家奖，个人奖
1999年，中国科学院青年科学家一等奖，个人奖
1999年，中国科学院自然科学二等奖，“雅鲁藏布江河谷地区动植物区系地理的研究”，第一获奖人
2000年，享受国务院政府特殊津贴
2002年，云南省中青年学术带头人
2003年，第四届青藏高原青年科技奖，个人奖
2004年，云南省自然科学一等奖，“中国种子植物区系的研究”，第八获奖人
2005年，云南省自然科学一等奖，“东亚植物区系中主要特征成分和重要类群的形成和发展及地质历史的研究”，第四获奖人
2006年，国家杰出青年科学基金，个人奖
2007年，“新世纪百千万人才工程”国家级人选

2009年，中科院朱李月华优秀教师奖

主要专著：
孙航, 周浙昆. 2002. 雅鲁藏布江大峡弯河谷地区种子植物（约64万字）, 昆明：云南科技出版社.

代表性研究论文：
Zha HG, Milne RI, Sun H*, 2008. Morphological and molecular evidence of natural hybridization between two distantly related Rhododendron species from the Sino-Himalaya. Botanical Journal of the Linnean Society, 156, 119–129.
Nie ZL, Wen J, Sun H, 2007. Phylogeny and biogeography of Sassafras (Lauraceae) disjunct between eastern Asian and eastern North America. Plant Systematics and Evolution, 267:191-203
Wu ZY, Sun H*, Zhou ZK, Peng H, Li DZ, 2007. Origin and differentiation of endemism in the flora of China. Frontiers of Biology in China, 2(2): 125–143
Zhang JW, Sun H*, Nie ZL, 2007. Karyological studies on the Sino-Himalayan endemic Soroseris and two related genera of tribe Lactuceae (Asteraceae). Botanical Journal of the Linnean Society, 154(1): 79-87
Nie ZL, Sun H, Li H, and Wen J. 2006. Intercontinental biogeography of subfamily Orontioideae (Symplocarpus, Lysichiton, and Orontium) of Araceae in eastern Asia and North America. Molecular Phylogenetics and Evolution 40: 155-165.
Nie ZL, Sun H, Beardsley PM, Olmstead RG, and Wen J. 2006. Evolution of biogeographic disjunction between eastern Asia and eastern North America in Phryma (Phrymaceae). American Journal of Botany 93: 1343-1356.
Yue JP, Sun H*, Al-Shehbaz IA, and Li JH. 2006. Support for an expanded Sloms-Laubachia (Brassicaceae): evidence from sequences of chloroplast and nuclear genes. Annals of the Missouri Botanical Garden 93: 402-411.
Tu TY, Sun H*, Bartholomew B, Nie ZL. 2006. A cytological study on Kelloggia (Rubiaceae), an intercontinental disjunct genus between eastern Asia and western North America. Journal of Plant Research 119: 397-400.
Tu TY, Sun H, Gu ZJ,and Yue JP. 2005. Cytological studies on the Sino-Himalayan endemic Anisodus and four related genera from the tribe Hyoscyameae (Solanaceae),and their systematic and evolutionary implications. Botanical Journal of the Linnean Society 147: 457–468.
Nie ZL, Wen J, Gu ZJ, Boufford DE, and Sun H*. 2005. Polyploidy in the flora of the Hengduan mountains hotspot, southwestern China. Annals of the Missouri Botanical Garden 92: 275-306.
Nie ZL, Wen J, Sun H, and Bartholomew B. 2005. Monophyly of Kelloggia Torrey ex Benth. (Rubiaceae) and evolution of its intercontinental disjunction between western North America and eastern Asia. American Journal of Botany 92: 642-652.
Nie ZL, Sun H*, Gu ZJ, 2004. A Survey of Chromosome Numbers from Angiosperms of the Hengduan Mountains SW China, Acta Botanica Yunnanica, 26(1):35-57.
Sun H, Li ZM, 2003. Qinghai-Tibet Plateau uplift and its impact on Tethys flora. Advance in Earth Sciences, 18(6):852-862.
Sun Hang, 2002. Evolution of Arctic-Tertiary Flora in Himalayan-Hengduan Mountains. Acta Botanica Yunnanica, 24(6):671-688.
Sun Hang, 2002. Tethys Retreat and Himalayas-Hengduanshan Mountains Uplift and Their Significance on the Origin and Development of the Sino-Himalayan Elements and Alpine Flora, Acta Botanica Yunnanica, 24(3):273-228.
Sun H, M. Fay, W Maclewin, M Chase, 2001 , Molecular Phylogeny of Helleborus (Ranunculaceae), with Special Emphasis on the E Asia and Mediterranean Disjunction . Taxon, 50:1001-1018