The invention discloses a method for improving greenhouse strawberry continuous cropping soil. The method is characterized in that after greenhouse strawberries enter the final harvesting stage, sick strawberry plants and roots of all the plants are dug away, a greenhouse is closed, and solar high-temperature disinfecting for one weak is conducted on the environment and soil in the greenhouse; after disinfecting is over, a greenhouse film is removed, unmatured organic matter is evenly scattered in the greenhouse, water is poured, the water level is close to the ridge face, and a tractor is used for rotary tillage; after rotary tillage is over, the soil face is flattened, and the water level is higher than the soil surface by 1-2 cm for about 30 days; after water flooding is conducted for 30 days, the greenhouse film covers and seals the greenhouse or after water is evaporated and the soil surface is slightly dry, an agricultural film covers the ground for sealing, processing is conducted for about 15 days, and during sealing processing, when the soil surface is dried, water supplementing needs to be conducted to keep the soil moist; after sealing processing is conducted for 15 days, the greenhouse film is removed, and soil improving is over. The method is high in systematicness, easy and convenient to operate, low in investment cost, safe and good in lasting effect.