Objective To evaluate the value of preoperative spinal-pelvic sagittal plane parameters in the diagnosis and treatment of lumbar disc herniation. Methods Ninety cases of patients with lumbar disc prolapsed were collected. Though Quadrant channel of minimally invasive by the intervertebral foramen between lumbar vertebral fusion (TLF), the treatment of lumbar intervertebral disc protrusion were performed. Before and after treatment, the spinal and pelvic sagittal plane detection, visual analog scale (VAS), Oswestry disability index (ODI) to evaluate the clinical and nerve recovery effect were recorded. According to the treatment effect, patients were divided into the effective group and ineffective group. Results Taking the treatment effect as the gold standard, the treatment was effective in 66 cases and ineffective in 24 cases. The spinal-pelvic sagittal plane parameters predicted that the treatment was effective in 66 cases and ineffective in 24 cases. The prediction sensitivity, specificity, accuracy, positive predictive value and negative predictive value of the sagittal plane parameters were 93.9%, 91.7%, 93.3%, 96.9% and 84.6%, respectively. The consistency was evaluated by Kappa test, and the κ value was 0.83. There were 28 cases (31.1%) of sagittal imbalance before treatment and 13 cases (14.4%) of sagittal imbalance after treatment, and the difference between the two groups was statistically significant (P?