| In recent years, the Chinese government attaches great importance to agricultural continuous development and grain production, have issued a series of safeguard measures. In china, the major grain producing areas play an irreplaceable role in the grain harvest and effective supply of grain, if there is a problem, it will endanger the national food security and social stability. Major grain producing areas and grain capacity is affected by many factors; the most important factor is the irrigation and water conservancy facility which is a part of agricultural infrastructure.In order to understand the development of investment on farmland water conservancy facilities roundly, this paper refers to a large number of related references domestic and abroad, after that gives some summary and analysis about the present situation of investment on farmland water conservancy facilities in major grain producing areas. Results showed that the main grain producing areas in China are still facing some matters, such as a shortage of funds, unreasonable funds input, and weak property regime and so on. Then the paper use the modified three stage DEA model and Malmquist index model to analyses the investment efficiency of farmland water conservancy facilities by static and dynamic method. The reason of using modified three stage DEA model is that the model can eliminate the influence of environmental factors and random error. The results show that the investment efficiency of the 13 major grain producing areas on farmland water conservancy facilities have been improved, but still have room for improvement. Hebei, Jiangsu, Anhui and Inner Mongolia have affected by environmental factors greatly. In addition to Heilongjiang, other areas have made progress in the investment of farmland water conservancy facilities.Based on the analysis above, in order to further improve the investment benefit of irrigation and water conservancy facilities in China’s major grain producing areas, the paper puts forward suggestions taking Heilongjiangã€Hebeiã€Jiangxiã€Inner Mongolia as examples. |