The invention discloses a deep scarification fertilization seedling belt rotary tillage precision seeding method. The deep scarification fertilization seedling belt rotary tillage precision seeding method comprises the steps that 1, a fertilizer regulator is used for regulating the fertilizer output amount of a deep fertilizer output port in the upper side of each deep fertilizer guide plate; 2, the height of a shallow fertilization mechanism is determined; 3, a traction machine is connected; 4, fertil ization and sowing preparation are carried out; and 5, deep scarification, fertilization, seedling belt rotary tillage and precision seeding are carried out. Straw cleaning is achieved before deep scarification, fertilizers needed by crops in different growth periods can be applied to different soil layers at a time while deep scarification is carried out, a good environment is provided for growth of the crops, one-time fertilization is achieved, later topdressing is not needed, the fertilizer utilization rate is increased, a seeding seedling belt can be obtained through rotary tillage after deep scarification, and the consistency of crop seeding depth is improved; uniform, strong and uniform seedlings are easy to realize, so that the crop yield is improved, the residual straws can be directly returned to the field through rotary tillage, the soil fertility can be improved, the planting links are reduced, straw incineration is effectively avoided, the agricultural ecological environment is protected, and the agricultural sustainable development is promoted.