In Wenchuan earthquake

we found that there were still problems in city park system in terms of disaster prevention and reduction and we should focus on the function of disaster prevention and reduction in city park planning and construction.The city park ought to be Disaster Prevention Park.Disaster Prevention Park is a kind of City Park and green land for generalized shelter for disaster prevention and refuge

which is not the ordinary city park and green land and should meet the requirements of urban planning for disaster prevention and reduction.From the definition

Disaster Prevention Park is described emphatically in three characteristics: scale

structure and facilities.Some key parameters

such as the number of parks per square km

the number of parks per million people

park area per number of residents

and the ratio of park area to urban area

are statistically analyzed for the status of Disaster Prevention Park in Shanghai City.The main problems in the planning and construction for Disaster Prevention Park in Shanghai City are pointed out.Based on this

two suggestions are made as below:（1） the planning of Disaster Prevention Park should base on the disaster prevention green network;（2） the city park should gradually transform into the disaster prevention park.