Abstract: This article system elaborated growth characteristic that broadcasts the sowing time ahead of time of interplant wheat in paddy in Huaibei area, favors form the strong early sprout; The community is big, Peak seedling ahead of time, favors a foot ear of formation; The seedling growth advancement ahead of time, favors the big ear of formation, and the correlation mechanism of influence of ear, grain, the heavy three factors coordinated development, proposed selects the disease-resistant variety, suitable time right amount sowing seeds, “few food many meal ”balances applies fertilizer , maintains the surface soil good environment before the winter and so on the necessary light simplification cultivation technology, applied in the production practice, has obtained the good economic efficiency and the social efficiency.