Abstract: The integration of water and fertilizer is to dissolve the fertilizer in the water by using the irrigation pipeline, making it possible to irrigate and fertilize at the same time. It can meet the crop demand to water and nutrients at a proper time and in proper amount. In order to speed up the process of the integration of water and fertilizer and its popularization in Xinlingol, the history of farm irrigation and fertilization were reviewed in this paper, and the application status and problems of current integration of water and fertilizer analyzed and suggestion given on how to improve the level of fertigation.