The present invention relates to a telescopic universal drop-out type fuse tube, which comprises a drop-out type fuse tube. The drop-out type fuse tube is divided into two identical segments. The two segments of the drop-out type fuse tube are connected through flange plates. The flange plates are connected through screws. A stress spring is sleeved onto the outer diameter of each screw. According to the technical scheme of the invention, the middle part of the drop-out type fuse tube is provided with the flange plates, so that the fuse tube is divided into two segments by the flange plates. Therefore, the flange plates play the connection role. The connection of the flange plates is realized by more than four screws, and two connected segments are connected to realize the telescopic function. A stress spring of a corresponding stiffness coefficient is sleeved onto the outer diameter of each screw, so that two connected segments of the fuse tube are stressed uniformly and stably. According to the distance between the contacts of a drop-out type fuse, the spacing between flange plates is adjusted. Therefore, the length of the fuse tube is adjusted to satisfy the requirements of different drop-out type fuses.