Improved agricultural greenhouse

The invention aims to solve the protection problem of agricultural greenhouses and discloses an improved agricultural greenhouse which comprises a greenhouse body, mounting plates are symmetrically mounted at the bottom of the greenhouse body, fixing rods are symmetrically mounted on the left side and the right side of the greenhouse body, guide frames are fixedly mounted at the outer ends of the fixing rods, motors are fixedly mounted on the upper sides of the inner side faces of the guide frames, and the motors are fixedly mounted on the upper sides of the inner side faces of the guide frames. A rotating disc is installed in the middle of the motor, the upper side of the surface of the guide frame is sleeved with a nut, the guide frame is sleeved with a sliding plate, a first spiral spring is installed between the sliding plate and the nut, a connecting film is connected between the sliding plate and the bottom of the guide frame, and a pull rope is connected between the rotating disc and the sliding plate.