Telescopic tent capable of being expanded infinitely

The invention discloses a telescopic tent capable of being expanded infinitely, and relates to the technical field of tents, the telescopic tent comprises a plurality of supports which are linearly arranged and are in an inverted U shape, and a connecting and fixing piece is arranged between every two adjacent supports. The two adjacent door-shaped supports are connected through the cross rod, thecross rod is composed of the two straight rods, the two straight rods are connected through the hinge fixing bolt in the middle, the two ends of each straight rod are connected with the supports through the connecting fixing bolts, and therefore the cross rod and the two door-shaped supports form a deformable parallelogram. The purposes of convenient building and dismounting, convenient telescopic control and infinite expansion are achieved; two adjacent door-shaped brackets are connected through a plurality of connecting rods, so that the purposes of convenience in building and dismounting and convenience in telesco