Qitaihe (Chinese: 七台河; pinyin: Qītáihé) is a prefecture-level city in Heilongjiang province. Lying in the eastern part of Heilongjiang Province in Northeast China and covering an area 6,223 square kilometers, Qitaihe is the smallest city among 13 prefecture and prefecture-level cities in this province. Qitaihe also has the second smallest population of the cities in Heilongjiang. At the 2010 census, its total population was 920,419, while 620,935 live in the built up area made of 3 urban districts.