In order to observe the clinical efficacy of single-point vaporization and double-point vaporization in the treatment of patients with lumbar disc herniation by percutaneous laser disc decompression (PLDD), 82 patients with lumbar intervertebral disc herniation were enrolled, and they were divided into two groups by random number table method, 41 cases in single-point gasification group in group A, 41 cases in double-point gasification group in group B, and both groups were local under anesthesia, a percutaneous stimulation phosgenation decompression operation was performed under the guidance of the "C" arm, and connected to a manometer to measure the pressure, compare the pressure difference in the intervertebral disc, and evaluate the clinical efficacy with MacNab, VAS, and ODI scores. The results show that all patients successfully completed PLDD under local anesthesia and completed the follow-up. The pressure in the lumbar intervertebral disc of the two groups of patients changed significantly before and after the operation, which was statistically significant (P＜0.05), and the average average pressure difference before and after the operation was (5.2±1.6) mmHg, but the pressure in the lumbar intervertebral disc between group A and group B was not statistically significant (P>0.05); the preoperative and postoperative follow-up evaluation results of the two groups of patients showed that the excellent and good rate of patients in group A was 92.7%, the excellent and good rate of patients in group B was 90.2%, the total excellent and good rate was 91.5%, the total effective rate was 97.6%, and the total recurrence rate was 2.4%. There was no statistically significant difference in the excellent and good rate and effective rate between the two groups (P>0.05); The results of the low back pain VAS score and ODI score of the two groups of patients before and after treatment showed that the low back pain VAS score, leg pain VAS score and ODI score of the two groups were significantly lower than those before the operation, and the difference was statistically significant (P＜0.05). The comparison of follow-up 3 days after operation and 3 months after operation showed that the VAS score, leg pain VAS score and ODI score of the two groups of patients were also significantly reduced, and the difference was statistically significant (P＜0.05). The results of low back pain VAS score, leg pain VAS score and ODI score between group A and group B showed that the difference between the two groups was not significant, and there was no statistical significance (P>0.05). Conclusion: PLDD can significantly reduce the intradiscal pressure in patients with lumbar disc herniation and improve the clinical symptoms of patients, but the clinical efficacy is not affected by single-point vaporization and double-point vaporization.