Screen with length convenient to adjust

The utility model provides a screen with length convenient to adjust, which belongs to the technical field of screens and comprises a screen frame and slide rail extension mechanisms, two slide rail extension mechanisms are arranged on each of two sides of the screen frame, each slide rail extension mechanism comprises a slide plate, the slide plate is provided with a support plate through an adjusting mechanism, and the support plates are arranged on the support plates. The sliding rail extension mechanism can drive the sliding plate to slide and move, and a half screen frame is arranged between the upper surfaces of the two supporting plates. The length of the screen cloth can be adjusted, so that the probability that the screen cloth is impacted after being folded is reduced, the possibility that the screen cloth is damaged is further reduced, and even if the screen cloth is damaged, the center position of the screen cloth can still be normally used after the two half screen cloth frames are pulled open. 本