The invention relates to a greenhouse back-slope plant protection utilization method and a greenhouse structure, and belongs to the technical field of greenhouses.According to the severe disadvantage in the prior art, the greenhouse back-slope plant protection utilization method which effectively solves the problem of soil and water loss of the greenhouse back-slope earth wall, enhances the greenhouse insulation effect and prolongs the service life is provided.The method mainly comprises the two aspects that a cement layer or a water-proof insulation layer is arranged between the greenhouse back-slope and the backwall to enhance the insulation effect, a drainage system is installed, and the backwall is prevented from collapsing caused by long-term penetration of rain and snow water; greening vegetation or shallow-root disease-pest-resistant traditional Chinese medicinal materials are planted on the back-slop surface, and back-slope surface washout and water and soil loss are prevented; in this way, the problems that the greenhouse back-slope is poor in insulation effect and even causes backwall collapse due to washout and permeation of high wind and rain and snow water are solved.According to the greenhouse back-slope plant protection utilization method and the greenhouse structure, the method is exquisite in design, less in investment and easy to implement, and good economic and social benefits are achieved.