The problem of soil salinization in Ningxia Yellow Diversion Irrigation Area is relatively serious, which restricts the sustainable development of agricultural production to some extent. In this paper, the soil moisture and salinity along the West Main Canal and Tanglai Canal in Ningxia Yellow River Irrigation Area are investigated through choosing field sampling, and employing Kriging interpolation method. Soil moisture, salinity ions content and pH value are measured, and their temporal and spatial distributions are analyzed. The results show that the salinization in the soil surface of the studied area is cohesive and the soil is alkaline. The salinity content in soil gradually increases from southwest to northeast and the soil salination in Nanliang Farm of the studied area is relatively more serious. Generally speaking, the soil moisture along Tanglai Canal is higher than that along West Main Canal.