Abstract: Based on drought and water shortage of paddy field in Wenchuan earthquake-stricken Area, a two-year field experiment, designed for five different cropping patterns in paddy field which transformed from paddy field to dry land, was conducted to examine effect of maize growth characteristics, grain yield, agricultural products service value and soil fertility. The results showed that: annual grain yield of dry farming cropping patterns increased by 1.55%-24.20% comparing with rice-wheat rotation. Soil bulk density of 10- 20 cm soil layer increased by 7.69%-13.85% after soil transformed from paddy field to dry land, and cropping patterns of both inter-planting and relay-planting were higher than that of rotation systems. Soil alkali-hydrolysis nitrogen, available phosphor and available potassium increased by 1.48%-28.16% , 181.66%-436.56% and 42.47%-157.68% respectively after two-year transformation from paddy field to dry land. Agricultural products service value was significantly different among various cropping patterns and different years. Cropping pattern of wheat-summer maize which characterized with high increasing potential yield, low cost, large-scale production, could be chosen as an optimum crash program instead of rice-wheat rotation in early days of earthquake, but rice-wheat rotation should be recovered two years later.