Abstract: Take rice line Ha04-34 as varieties in this study, which cultivated in pot and putted in climatic cabinate, effect of contamination of chlorobenzene on rice growth, yield traits and food security were studied. The results were as follows: effect of chlorobenzene on rice growth were restraining rice growth and delaying heading and maturity. The paddy, when concentration of chlorobenzene was above 243 times of state standard in irrigating water, could not cultivated rice, and it had not detected chlorobenzene residue in seed only the rice could to maturity.