In order to explore suitable cultivation mode for dry land winter wheat,the experiment with irrigated and dry land variety Ningdong16 and upland variety Ningdong13 were carried out to analyze the effects of whole-film mulching （T₁）,farmers’conventional cultivation modes （T₂） and no-film mulching （T₃） on dry matter accumulation grain filling characteristics,yield and yield composition factors.The results showed that the changing trend of dry matter accumulation in the vegetative organs after flowering was basically the same under the three cultivation modes.The dry matter accumulation and allocation rate in different vegetative organs of winter wheat under different sowing in the mature shows as:grain＞stem＞leaf＞clever shell＞leaf＞cob,the quality of grain dry matter accounted for the largest percentage of total plant and the distribution rate is 41.6%-46.0%.The increase trend of dry matter in grain conforms to the Richards equation.The grouting rate showed a "single peak" curve and a "slow-fastslow" trend.There were significant differences in grout rate among different cultivars,but the variation trend of grout rate among different cultivars was basically the same.Grouting rate fitting equation varies with varieties and cultivation methods.The change of grain filling rate between three cultivation methods of Ningdong 16 conforms to the cubic curve equation,and the grain filling rate of Ningdong 13 conforms to the quadratic equation under T₁mode,and the grain filling rate of T₂and T₃conforms to the log-modified model.In terms of yield and yield components,the yield of T₁was higher than that of T₂and T₃,but there was no significant difference among T_1-13,T_2-13and T_3-13.Moreover,the mass of 1,000 grains and the number of panicle per hectare in T₁mode were both higher than that of T₂and T₃.Generally speaking,Ningdong 16 is more suitable for T₁mode,while Ningdong 13 is more suitable for T₂mode in areas with sufficient rainfall