Micro Endoscopic Laminectomy (MEL) is one of the minimally invasive spine surgery (MIS) for lumbar canal stenosis. This method is characterized by using a tubular retractor system (Medtronic, Inc. 16 mm diameter) and unique visualization through the oblique lens (25 degree). The benefits of this system are reduction of tissue or muscle trauma, and providing of a clear and wide visualization of the operative field. This clip shows the technique performed by Dr. KOGA who is the chief of endoscopic spinal surgery in our hospital.