The invention relates to a method for strongly restoring facility soil by using garlic processing waste, and belongs to the technical field of soil restoration. In the present invention, after the crops are harvested, the urea solution is evenly sprayed on the soil surface, and the soil surface is covered with a greenhouse film for one week; then the greenhouse film is removed, and the garlic processing waste, crushed plant straw, sawdust, and fungal residue are evenly sprinkled On the soil surface, rotary tillage to a depth of 30cm, to mix the material with the soil evenly, then spray the EM bacterial agent solution, and lay the greenhouse film again; finally, water from the bottom of the greenhouse film, and water again after the water infiltrates the next day, and water again after 1 week Deep, add EM bacteria and brown sugar mixed fermentation liquid to the water at the same time, after the water infiltrates, press the membrane around, remove the greenhouse membrane when the soil humidity reaches the arable level after 20 to 30 days, and get a strong reduction soil. The soil treated by the method of the invention has low EC value, less salt return and good bactericidal effect, and can also improve vegetable root system, promote plant growth and increase yield.