The Khankaiskiy Biosphere Reserve in Russia is vital for conserving bird biodiversity in wetland areas. Established in 1990, it became a Biosphere Reserve in 2005. The reserve collaborates with China's Xingkai-Hu Reserve, forming the Russian-Chinese Khanka Lake Reserve. The article discusses the reserve's structure, functions, and international research efforts. It also touches on environmental issues affecting the area's ecosystems.