The utility model discloses an annular binding structure of a binding type windshield, and belongs to the field of railway vehicles. The purpose is to solve the problems that an existing windshield is complex in structure and installation, and much time and labor are consumed. The annular binding structure comprises two frames, multiple middle frames, shed cloth, two tensioning ropes and tightening ropes. The shed cloth is a closed body with openings in the two ends, the two frames are arranged, in the circumferential direction of the two ends of the shed cloth, at the open ends of the shed cloth, the middle frames are evenly arranged between the two frames inside the shed cloth, the middle frames and the two frames are arranged in the same direction, a single ring is formed between each frame and the corresponding middle frame, and a single ring is formed between every two adjacent middle frames. The two tensioning ropes penetrate through the frames and the middle frames to be arranged on the two sides, the number of the tightening ropes is the same as that of the single rings, each single ring is used for winding only one tightening rope in the circumferential direction of the single ring, and the two ends of each tightening rope are connected with the two corresponding tensioning ropes respectively. The annular binding structure is simple and convenient to operate, on the premise of keeping an original performance ratio, the installing progresses are saved by a half, and therefore working hours are reduced, and the production cost is lowered.