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This study aims to evaluate the clinical outcomes of endoscopic vein harvesting (EVH) for coronary artery bypass grafting (CABG) in obese patients.Totally,153 obese patients who underwent EVH (n=81) or standard bridging technique (SBT,n=72) in CABG surgery from May 2012 to October 2014 in our hospital were enrolled in this retrospective non-randomized controlled study.The general situation of operation,postoperative complications and short medium-term outcomes were analyzed.The baseline characteristics were similar between these two groups (P＞0.05).There were no statistical differences in total operation time (226±28 min vs.224±30 min,P＞0.05),number of damaged vessels (0.12±0.05 vs.0.16±0.06,P＞0.05) and short medium-term outcomes including revascularization rate (1.25％ vs.2.78％,P＞0.05),vessel dysfunction rate (11.25％ vs.11.11％,P＞0.05) and mortality (0.00％ vs.0.00％,P＞0.05).Use of EVH was associated with significant reduction of total harvesting time (41±6 min vs.63±11min,P＜0.05),incision length (4.4±1.1 cm vs.18.2±4.5 cm,P＜0.05) and postoperative lower extremity complications (P＜0.05).EVH can reduce the risk of wound complications,whereas does not influence short-and medium-term outcomes in obese patients.It can be considered a reliable procedure of harvesting vessel conduits for obese patients undergoing CABG.