The invention relates to the field of logistics transportation, and specifically relates to an annular conveyor belt. The annular conveyor belt comprises an inner side plate and an outer side plate, wherein a plurality of bearings which are annularly distributed at equal intervals are fixedly connected to the outer walls of the opposite sides of the inner side plate and the outer side plate; the bearings are positioned at positions, close to the bottom parts, on the outer walls of the opposite sides of the inner side plate and the outer side plate; and rotating rods are inserted into the bearings. According to the annular conveyor belt, a telescoping spring and a roller are arranged; when a wing plate and the roller are extruded through transported objects, a sliding sleeve is driven to extrude the telescoping spring, and meanwhile, the roller is capable of driving the roller to rotate around a connecting shaft supporting point under the condition that the objects are driven to move through a transmission rod and a rotating belt, and thus the transported objects can be greatly fixed and are prevented from being thrown out from the annular conveyor belt due to excessively high centrifugal force; and meanwhile, the telescoping spring is arranged, so that the acting force of the objects in extruding the roller can be reduced, and as a result, the buffering capacity of the annularconveyor belt in the transportation process and the object transporting stability can be improved.