The invention discloses a nursery stock culture soil turning maintenance device, which relates to the technical field of garden maintenance, and comprises a power vehicle, a driving cabin, a soil turning claw, a first motor, a transmission part, a support plate, a protection shell, a maintenance liquid box, a cleaning maintenance part, a rolling part, a screening part, a conveyor belt, an elastic part and a linkage part, through cooperation of the linkage part, the cleaning and maintaining part and the elastic part, soil attached to stones can be washed, a small number of unscreened soil blocks are crushed and diluted through cooperation of a plurality of rolling brushes, and the soil blocks flow into the soil again after being mixed with a maintaining liquid; and hardened soil blocks with the low nutrient content can be subjected to key maintenance in a targeted mode, the nutrient value of the soil is greatly improved, planting of nursery stocks is facilitated, large stone blocks can be effectively screened out, and the situation that when the stone blocks are screened, a large amount of soil is lost, and consequently soil is deficient and nutrients are lost can be prevented.