By use of field trials data from 2013 to 2014, the paper analyzed the use efficiency of water and fertilizer, growth indicators, factor of yield structure, yield of goods and final yield of three main typical crops (maize, potatoes, and soybeans) in Inner Mo water and fertilizer integration ngolia under the condition of traditional planting and water and fertilizer integration.It discussed the mechanism of action of water and fertilizer integration such as taking fertilizer to diverse water and water to fertilizer. Finally, and proposed the problems and corresponding countermeasures of integrative water and fertilizer development technology in Inner Mongolia prefecture.The results show that compared with tradition planting, the water use efficiency increases 8.50%-62.89%, fertilizer use efficiency increases 16.0%-60.6%, and yields of maize, potatoes, and soybeans increase 22.01%, 171.60% and 63.76% respectively under the condition of water and fertilizer integration. Overal,the development of integrative water and fertilizer technology has great significance and broad prospect.