The modern economic growth theories pay more attentions on the relationship between the saving rate and economic growth,and give the proposition that high saving rate could cau se more rapid economic growth when th e per capita capital is low.By using th e Granger causality testing,we find that there is no positive influence f rom saving rate to economic growth in Chi na' s economy,and there is the feedback i nfluence from GDP to saving in level.The rapid income growth is the main reason of raising saving.The in duction in consumption demand and th e stability in investment demand weak en the influence from saving rate to e conomic growth.