Abstract
With the continuous development of society and economy in China, the number of water conservancy & hydropower engineering in China increases unceasingly and China’s water conservancy industry also enters into the stage of rapid development. The construction of water conservancy & hydropower engineering promotes social and economic development, so in order to safeguard the benefts of the engineering, cost management shall be done well, which is also an important channel for companies engaging in water conservancy & hydropower engineering to obtain economic benefts. Based on this the paper frstly investigates the problems in water conservancy & hydropower engineering cost management and then brings up relevant solutions.