"Ask Qingcheng Mountain and worship Dujiangyan" is a famous sentence by famous scholar Yu. This was written by the author when he visited Dujiangyan, and now it has become the tourist slogan of Dujiangyan City.
Dujiangyan is one of the world cultural heritages and an outstanding representative of ancient water conservancy projects in China. It skillfully uses the natural environment and water flow law to realize the functions of water diversion irrigation, flood control and disaster reduction.