Rice stripe disease transmitted by brown planthopper is one of the most serious viral disease in some rice-growing areas of China in recent years. As an ecological practice of rice growing, rice-duck integrated farming has shown great effects on the controls of rice insects, diseases and weeds. However, there is no direct field evidence of the integrated farming effects on brown planthopper and rice stripe disease. Here we examined the effects of different rice-growing systems on controlling brown planthopper population and rice stripe disease in field experiments in Dongtai experimental station of Nanjing Agricultural University, Jiangsu Province, China from 2004 to 2005. The treatments included Common rice production system(CR: no duck, spraying chemistry pesticide), Rice-duck integrated system(RD: with duck, no chemistry pesticide), Rice-duck integrated system with insect proof net during seedling stage(NRD: plants covered with insect proof net during the seedling stage plus the RD treatment) and Control system(CK: no duck, no insect proof net, no chemistry pesticide). Results showed that the RD and NRD treatments significantly reduced brown planthopper population, resulting in great decline in the incidence of rice stripe disease during all stages of rice growth. The highest reduction in brown planthopper population was found in the NRD treatment with over 94.01% reduction of rice stripe disease. The RD treatment decreased rice stripe disease incidence by 79.44%, higher than that in CR treatment (78.82%). The findings suggest that rice-duck integrated farming, especially plant covered with insect proof net cover during the seedling stage, is a safe and high efficiently ecological approach for controlling rice stripe disease in China.