The utility model relates to a semi -enclosed growth room of crop physiology ecological functions research, including main frame, the swing joint support in the main frame bottom to and fixed wire drawing is prevented empting by the main frame, the main frame includes the square pole setting of going up the frame, connecting four edges on the frame on square to and present the multiunit pole setting support group spare that the lower leaf set up, the outer border of pole setting is covered with the protecting film, pole setting surface bolted connection has the draw -in groove, place the band spring in the draw -in groove, be equipped with the opening on the protecting film of two arbitrary adjacent pole setting lower parts, support group spare supports and longitudinal support including horizontal, the rigid coupling has a plurality of connecting pieces on the square upward frame, the support includes bottom plate and the rigid coupling sleeve pipe on the bottom plate. Compared with the prior art, have the simulation research who is used for crop physiology ecological functions, in the farm work, better guarantee the uniformity of crop growth condition, make research have more the practice and worth, representative stronger characteristics.