Studies on water and nutrition dynamics of dry farmland were carried out in fixed positions in Sands area. There were 3 types of dry farmland in areas without shelterbelts, namely wind-eroded land(on the wind ward),wind-accumulated sand(on the leeward)and the transitional part. Wind-eroded land was the best and, wind-accumulated sand worst in moisture condition. The top soil (0~20cm) was better than the lower part (20~60 cm) in nutrition. Soil fertility was the poorest in wind- accumulated sand, and best in the transitional part. The dry farmland in sandy area had clear characteristics. The fluctuation soil moisture was smaller than that of rainfall in the year. Crops with synchronous needs for water and nutrition were of high production. The output was not greatly influenced by total N, P or K but in close correlation with organic matter, available P and K in top soil and available N in lower part.