With the increasing of medical technology, the demand for the repair of the related tissue and organ injury is also growing. At the same time, microsurgery plays an increasingly important role in the successful completion of difficult operations. After the end of spinal surgery, dural rupture and cerebrospinal fluid leakage are relatively common complications. In order to study the micro repair technique of dural rupture caused by surgery, 30 patients with dural rupture were selected in this paper. After MRI showed that there was suspected vascular lesions in spinal canal, all cases were confirmed by digital subtraction angiography. This study showed that after microsurgery, there were 20 patients with excellent evaluation grade, and the average score of aminov score was 0.6, accounting for 80% of the total number of patients; 5 patients with good evaluation grade, with an average score of 4.5 points, accounting for 10% of the total number; 3 patients with medium evaluation grade, with an average score of 6.2 points, accounting for 7% of the total number; 2 patients with poor evaluation grade, with an average score of 8.9 points, accounting for 3% of the total number. In the related evaluation of comprehensive efficacy, 23 cases were cured, accounting for 73% of the number of researchers, 5 cases were improved, accounting for 17% of the number of researchers, 2 cases were unchanged, accounting for 10% of the number of researchers, and there was no worsening case. Therefore, for the dural rupture caused by exercise, the treatment of dural rupture during operation and the comprehensive treatment after operation are very important.