According to the theoretical framework of addressing climate change based on risk management and the challenge to nature reserve management under climate change,climate change risk of nature reserve was analyzed and defined. Focus on birds and water habitat,grassland habitat, forest habitat,wetland habitat in Dalinuoer Nature Reserve,risk assessment method of nature reserve under climate change was formulated,climate change risks to Dalinuoer Nature Reserve and its habitats were assessed and predicted. The results showed that,during the period from 1997 to 2010,there was significant volatility in dynamic changes of climate change risks to Dalinuoer Nature Reserve and waterbody,grassland,forest,wetland in the region,Dalinuoer Nature Reserve and its habitats were in status of risk in 1999,2001,2005 and 2008,wetland habitat was also in status of risk in 2002 and 2004. Under scenario A,B and C,climate change risks to Dalinuoer Nature Reserve and waterbody,grassland,forest,wetland in the region would be more serious in 2020 and 2030,compared with the 2010 level. Climate change risks to different habitats were different significantly, with most serious climate change risk to wetland habitat due to its sensitivity to climate change and rich bird resources. The effect of climate change on nature reserve and related risk would be aggravated by excess utilization of water resource and grassland resource. As climate change risks had appeared in Dalinuoer Nature Reserve,risk management associated with climate change could greatly help to maintain and enhance biodiversity protection function of nature reserves.