The invention discloses a device for reconstructing a 
covered stent blood vessel combination of an 
aortic arch part and three branches. The device comprises three artificial 
blood vessel assemblies, wherein the three artificial 
blood vessel assemblies comprise a direct cylindrical artificial 
aorta blood vessel (1), a small 
stent blood vessel (2) and a direct cylindrical pipeline (11); the direct cylindrical artificial 
aorta blood vessel (1) comprises an 
aorta vascular 
adventitia (7) and an aorta endovascular 
stent (8); the far end part (8a) of the aorta endovascular 
stent (8) and the outside vascular 
adventitia are integrally designed, and a near end part (8b) is a naked stent which can be released later; the small stent blood vessel (2) comprises a small stent vascular 
adventitia (9) anda small stent endovascular stent (10); the head end part (10a) of the small stent endovascular stent (10) and a top end part adventitia (9a) of the small stent vascular adventitia (9) are integrally designed, and the 
tail end part (10b) and the lower end part adventitia (9b) of the small stent vascular adventitia (9) are separately designed. Through the adoption of the blood vessel assemblies disclosed by the invention, the 
aortic arch part and the three-
branch blood vessel can be quickly reconstructed; even 
branch blood vessels have large variation, original 
normal blood vessel form can alsobe kept to the maximum degree; the device is suitable for various blood vessels having deformed branches, and is wide in application range, stent customizing is avoided, 
batch production can be performed, operation wounds can be effectively reduced, and the 
surgery operations are notably simplified.