Abstract: Based on runoff data in Yingbaza and Kala hydrological stations and other related data from 1961 to 2005,the runoff and consumption quantity in the Middle Reaches of Tarim River are analyzed by time order during 45 years.The runoff quantity diversification and trend, consumption and trend,the relation of runoff quantity and consumption during 45 years are obtained and analyzed. Analysis shows that the upriver runoff decreases and that in middle reaches also decreases,but at the same time the consumption in ...