Unilateral biportal endoscopic transforaminal lumbar interbody fusion (UBE-TLIF) is an advanced, minimally invasive spinal surgical technique characterized by the use of 2 discrete portals-one for clear visualization and continuous irrigation and the other for the dexterous manipulation of surgical instruments. This configuration not only affords an expanded view (0° or 30°) but also enhances the freedom of movement for instruments, thereby augmenting the precision and flexibility of the surgery. The superiority of UBE-TLIF lies in its capacity to facilitate rapid postoperative recovery with minimal trauma, reduced intraoperative bleeding, abbreviated hospital stays, and significant amelioration of postoperative lower back pain. Comparatively, UBE-TLIF demonstrates equivalent fusion rates and clinical outcomes to traditional open surgeries while also increasing patient satisfaction.