The invention discloses a small and medium-sized combined type greenhouse frame. The small and medium-sized combined type greenhouse frame comprises two ground beams and a plurality of bracket strips, wherein the bracket strips are arranged on the ground beams; fixed inserting legs are arranged on each ground beam and are inserted into soil; fixed holes are formed in the two ground beams, and both ends of each bracket strip are inserted into the corresponding fixed holes; each ground beam is provided with a groove cavity in the length direction of a main body, and a thin film coil is rotationally arranged in the groove cavity of one ground beam, and is axially distributed in the length direction of the ground beam body; the free end of each thin film is clamped by a plurality of clamps, each clamp is provided with a roller, a guide rail corresponding to each roller is arranged on the corresponding bracket strip, and each clamp is arranged on the guide rail of the corresponding bracket strip through the corresponding roller device; each roller is connected with the driving mechanism and does reciprocating movement between the groove cavities of the two ground beams along the corresponding bracket strip. The small and medium-sized combined type greenhouse frame has the advantages that the building is convenient and rapid; the size of the greenhouse frame is standard, uniform and regular, and the balance temperature in the greenhouse is beneficial for crops to grow; the span and height of the greenhouse frame are conveniently adjusted; the film pressing and uncovering are convenient, and the damage to the film is avoided; the labor intensity is greatly decreased, and the service life is prolonged.