A multi-lumen stent graft including a tubular main body stent graft and a tubular connection stent graft； the main body stent graft includes a tubular main body stent； the main body stent includes a tubular main body covering and a main body support frame fixed on a wall of the main body covering； a main lumen and at least one sub lumen are separated axially by a separation covering within the main body stent； in a released state, a proximal end of the connection stent graft and the main lumen at a distal end of the tubular main body stent graft are fitted and connected together. The multi-lumen stent graft is not prone to endoleaks and displacement, which can simplify surgical operations, reduce the difficulty and risk of surgery, and has a wide range of applications.
