The invention discloses an inclined top green house. The inclined top green house comprises a foundation, an upper group of upright posts and a lower group of upright posts which are mounted on the foundation, inclined beams built on the top ends of corresponding upright posts and a ceiling paved on the inclined beams, wherein the bottom end of each upright post is mounted on the foundation through an adjustable substrate; support pillars are fixed on the foundation; the lower ends of the inclined beams extend downwards and are movably inserted in the support pillars; an adjusting bolt is arranged in each support pillar in a screw-thread fit manner; the arrangement directions of the adjusting bolts are the same as those of the inclined beams, and the adjusting bolts abut against the ends of the inclined beams; a sedimentation tank for water storage is arranged directly under the lower side of the ceiling; a culturing pond for planting aquatic plants is arranged between the sedimentation tank and the lower upright posts; an overflow weir is arranged between the sedimentation tank and the culturing pond; an irrigating pipeline is paved in the green house; and a submerged pump connected with the irrigating pipeline is arranged at the bottom of the culturing pond. According to the inclined top green house, wooden structure deformation generated in the long-term use process of the green house can be finely adjusted, and simultaneously water taking of an irrigation system is facilitated.