Abstract: The research on the times of releasing Aphidius gifuensis control aphids has showed that: the successive releasing Aphidius gifuensis can control the growth rate of aphid effectively when the outset aphids is lower. The survey indicate: the control effect of releasing Aphidius gifuensis is significant ,equal employing agricultural chemicals in the field. The survey about employing insecticide in zone of releasing Aphidius gifuensis and convention field show that: Agricultural chemicals employment number of times reduce 1.22 and average employment amount reduced 40%。