Objective To investigate the effects of controllable tensile stress on intervertebral disc degeneration (IDD) in goats. Methods Twenty-four male 6-8 month-old goats were selected to construct the IDD models by axial induction of 40 N compression stress with elastic stress device. After the IDD models were completed, they were randomly divided into 6 groups (Group A-C were control groups, and Group D-F were the experimental groups). The compressive stress on IDD model was converted into tensile stress. The tensile stress of Group A-C was 0 N, the tensile stress of Group D-F was 40 N. The duration of tensile stretch was 4, 6 and 8 weeks, respectively. The degeneration and rehydration of intervertebral discs were detected by imaging (X-ray, magnetic resonance imaging) and histopathology (HE staining, immunohistochemistry). Results With prolongation of tensile stretch, disc height index (DHI) of experimental groups increased. Pfirrmann grading indicated that IDD degree of experimental groups was the lowest at 6th week. More nucleus pulposus cells were observed in experimental groups. Immunohistochemistry showed that type I collagen decreased first and then increased, while type II collagen increased first and then decreased in nucleus pulposus. Conclusions IDD can be repaired and rehydrated in a certain amount of time under a certain tensile stress. The results provide new insight and theoretical foundation for clinical practice in treating IDD low back pain.