Problems caused by urbanization such as inadequate water content in urban foundation, ecological unbalance in the soil and heat island effect, have become issues that people pay great attention to. Two projects, cited as being successful in integrating urban landscape planning and wetland ecology, are the Water Garden in Portland, USA, and the Living Water Garden in Chengdu, China. Artificial wetland is effective to establish urban ecology. It may not only solve the problem of urban water crisis, but also bring a series of good eco- environmental effects, such as to conserve groundwater, regulate climate, extend green areas, purify air, beautify city and even effectively control flood damages, and etc.