Abstract: In order to study the impact of agricultural science and technology on regional agricultural economic growth， reveal the function mechanism of agricultural science and technology in agricultural production and agricultural economic growth， explore the regional differences of the effect of progress of agricultural science and technology on the economic growth of agriculture and its causes， we established a fixed effect of varying parameter panel model， examined panel data variables by the stationary test and cointegration tests， and estimated the model parameters of the regression estimation based on the general form of the C-D production function. On that basis， the effect of agricultural scientific and technological progress on the regional agricultural economic growth was analyzed by empirical analysis in complete detail. Through the analysis on the relevant elements of the contribution rate， it could better explain the impact mechanism of agricultural science and technology on regional agricultural economic growth. The results showed that there was significant difference in the contribution rate of agricultural science and technology in different regions， which indicated that the level of development of agricultural science and technology in China was uneven in different regions. The role of scientific and technological progress in agriculture in the process of economic growth in Chinas agriculture is still relatively small， and the present situation that agricultural economic growth in China relies on traditional high input， high consumption， low output， low efficiency of the extensive growth mode has not fundamentally changed.

Key words: agriculture, scientific and technological progress, panel model, C\|D production function, economic growth