Ecohydrology is a new way to resolve the morden water problems,originated from a innovative way to solne the environment oroblem. Ecological Engineering(EE). The papers,books and meetings with the theme of “ecohydrology” have been booming. At present the research methods can be summaried as:① Many monitering projects in China and other countries and combined with empirical estimations; ② Watersheds compared, macroscopic and microcosmic correlation analsis based on Set Pair Analysis(SPA); ③ combining ecohydrology models and remote sensing images.Future studies could be summarized as:① searching some factors which effect ecosystems evolution with ecohydrology; ② choosing appropriate scale,expressing water balance and water cycling with models; ③ researching the effect of climate change and human acativities on exetreme events; ④ strengthening paleoecology studies and discriminating ecohydrology evolution in a long-term series.