Abstract:This paper studies on the influence of different irrigation measures including film-mulched irrigation, "shallow to wet" irrigation and "shallow water" irrigation on the ecological environment of paddy field by field experiment. The results show that, the film-mulched irrigation method may increase the soil temperature, reduce the air humidity, leakage, evaporation, emitting of greenhouse gas of CH4 and N2O,and control weed's growth, thus promoting crops effective growth, precocity, saving water, increasing production, actively controlling plant disease and grass evil. And its water use efficiency, its economic benefit and the ecological environment benefit are all best. The "shallow to wet" irrigation method is the next, the "shallow water" irrigation method is the lowest.