NOVELTY - The biodegradable greenhouse comprises a soil culture medium, a cover body arranged on the soil culture medium, where the soil culture medium includes a vaccination layer. The cover body is connected with a water distribution system and a water collection system. An impermeable layer is arranged below the vaccination layer. The water distribution system comprises first and second pipelines that are arranged parallel to one another. An organic waste water tank is connected with the second pipeline through pipeline and a constant pressure water supply pump.    USE - Biodegradable greenhouse.    ADVANTAGE - The biodegradable greenhouse: has reasonable structure; is low in cost; and reduces the environment pollution, effectively recycles the organic waste water, and absorbs the nutrients from the organic waste water so as to increase the growth of the crop with out the usage of fertilizer.    DETAILED DESCRIPTION - The biodegradable greenhouse comprises a soil culture medium, a cover body arranged on the soil culture medium, where the soil culture medium includes a vaccination layer. The cover body is connected with a water distribution system and a water collection system. An impermeable layer is arranged below the vaccination layer. The water distribution system comprises first and second pipelines that are arranged parallel to one another. An organic waste water tank is connected with the second pipeline through pipeline and a constant pressure water supply pump. A control device is connected with a constant pressure water supply pump through a lead. The first and second pipelines are provided with a set of water outlet holes that are covered with a filter cloth layer. A filler layer is formed between the pipelines and the filter cloth layer. The water collecting system comprises third and fourth pipelines. A draining well is connected with an outer side of the fourth pipeline. The third and forth pipelines are provided with a set of water inlet holes, and are covered with the filter cloth layer. The filler layer is formed between the pipelines and the filter cloth layer. A liquid level controlling pump is arranged in a water outlet of the draining well, and extends to an external shed body, where the shed body is made of plastic or glass, the filler layer is made of ceramic material, and the filter cloth layer is made of non-woven fabric with 1-3 layered-structure.