What is the purpose and significance of minimally invasive spine techniques? The purpose of minimally invasive surgery is not only small incision, light trauma, quick recovery, less pain, and low cost, but also to obtain maximum therapeutic effect with minimal soft tissue damage and to preserve as many spinal segments as possible, avoiding complications such as paravertebral muscle damage, destruction of stable spinal structures, loss of motor function and degeneration of adjacent segments due to traditional open surgery and internal fixation fusion. In addition, for those who cannot tolerate the fusion, it is important to avoid the complications of the fusion. In addition, minimally invasive spine technology is a relatively safe option for patients with advanced age and multiple underlying diseases that require treatment that cannot tolerate open surgery, especially intervertebral foraminal techniques performed under local anesthesia, which are safe, reliable, and effective in restoring the ability to live independently at an early stage. Furthermore, minimally invasive spinal techniques are an effective method of step therapy for spinal disorders, which can postpone the time to the ultimate treatment of major open fixation and fusion and avoid or postpone as much as possible the loss of motor function and the chance of reoperation for degeneration of adjacent segments due to internal fixation.