Chinese agriculture is frequently confronted with natural disasters by the late Qing dynasty. The researchers conduct the literature review and positive and negative dimensions of study of the impacts brought by the natural disasters to the agriculture. It is found that the disasters result in desolation of the farmland with loss of harvest. Agriculture becomes stagnant, number of cattle decreasing, farmland worsened and agricultural production yield falling. Besides, with the change of the landing institution, farmers begin to leave their homes for survival, but dying in hordes out of famine. Worse still, vendors are vicious by hoarding and profiteering. All this leads to the fact that agricultural policies have to undergo more changes, to speed up the death of the natural economy and political monopoly. And revolution becomes inevitable for the entire society.