Scientific and technological poverty alleviation emphasizes on applying science and technology to transform the resource advantages in poor areas into economic advantages,seeking for new ways out to alleviate poverty with advanced and optimum technology,establishing scientific and technological demonstration networks,carrying out skills training,and enhancing farmers' diathesis.The historical process,working mode and poverty alleviation style of scientific and technological poverty alleviation in Hunan province have been discussed.Basically,the fundamental methods of precise poverty alleviation by the departments of science and technology in Hunan Province have summarized,including responsibility undertaking,scientific and technological support,village-resident help,technology training,etc.Thus such proposals have been put forward for the future as considering the new changes among scientific and technological poverty alleviation with the concepts of targeted poverty reduction,adhering to the "double wheels" motivation of targeted poverty alleviation and targeted poverty prevention,and exerting the supportive and guiding function of scientific and technological innovation on poverty alleviation,which has its practicalsignificance in normal poverty alleviation in Hunan Province.