Abstract: Interplanting Paulownia spp. seedlings and crops can get a plantation with new population structure. The ecological environment is improved and the light, soil and space are much better utilized because of the multiple-lager management. Growth of the seedlings, biomass and the survival percent of root cuttings are also improved. So, it is a new way to produce Paulownia spp. Seedlings with better economical effects. The conflict between forestry and agriculture can be solved, and it is good way to get big harvast of both seedlings and crops.