The invention relates to the field of greenhouses, in particular to a top-opening type multifunctional ecological greenhouse. The top-opening type multifunctional ecological greenhouse comprises a supporting structure, a layering structure, a buffer, a sterilizing structure, four thin films, an anti-insect net, four electric film rolling structures, three door leaves, a guiding structure and a spraying dripping pipe system. The layering structure and the spraying dripping pipe system are arranged inside the supporting structure, through the layering structure, traction is conducted on vine-climbing vegetable crops to realize vine climbing, and the spraying dripping pipe system is used for conducting spraying irrigation on vegetables. The film rolling structures are used in cooperation withthe guiding structure, in this way, greenhouse films are easily, stably and rapidly rolled and unrolled, ventilating and light transmitting of the greenhouse are easy, and then the temperature insidethe greenhouse is effectively regulated and controlled; after the top of the greenhouse is opened, rainwater leaching is easy; soil salinization in the greenhouse is reduced, and bases are laid for healthy growth of crops; meanwhile, internal supports of the supporting structure of the greenhouse form a rhomboid, in this way, the greenhouse is more stable, the capacity of resistance to wind reaches 12 level or higher, and the capacity of resistance to snow reaches 30 cm.