Single-incision laparoscopic sleeve gastrectomy (SILSG) was first described in 2008, which could effectively control excess body weight and treat metabolic diseases relevant to obesity in a long term. Over more than a decade of refinement and technical advancement, precise and standardized surgical techniques have become critical for ensuring treatment efficacy and reducing postoperative complication rates. Thus, this review summarized the evolution of SISLG, further understanding and emphasizing the importance of standardized and precise surgical procedures.