Lumbar disc herniation is currently second only to the flu, and can be treated conservatively in mild cases or minimally invasive or even surgically in severe cases. The following case is a huge lumbar disc herniation patient treated minimally invasively in our department: Patient Ai Moumou, female, 41 years old, was admitted to the hospital mainly because of pain and numbness in the left lower limb for 4 months. She was unable to lie flat and had a scoliosis deformity. L5-S1 intervertebral and paravertebral pressure pain, percussion pain and radiation to the left lower extremity to the left plantar. The left leg straight leg raise test was positive at 35°, the posterior aspect of the left calf was hyperalgesic, the dorsiflexion of the left little toe was grade III, and the left Achilles tendon reflex was diminished. Treatment plan: The patient was eligible for intervertebral foraminoscopy and under CT guidance, foraminoscopic nucleus pulposus removal was performed. The patient was able to lie flat immediately after the operation, and the left leg straight leg raise test was 80°. The pain in the lower back and the posterior aspect of the left lower leg was significantly reduced, and the patient was able to get out of bed after 3 days. urination returned to normal after 7 days, and the dorsiflexion strength of the left little toe was grade IV. He was discharged after 2 weeks. Intervertebral foraminoscopy technology is the best treatment method for lumbar disc herniation at present, with the advantages of no incision, little trauma, quick recovery and achieving the same purpose as surgery, bringing hope to the majority of people with lumbar disc herniation.