The invention discloses an ascending aorta covered stent and conveying system assembly and a using method thereof, belongs to the technical field of minimally invasive surgery, and aims to solve the problems that in the prior art, minimally invasive surgery is difficult to use in ascending aorta treatment and the like. The ascending aorta covered stent and conveying system assembly comprises a stent conveyor and a covered stent. The stent conveyor comprises an outer sheath tube, an adjustable bent tube, a single-cavity inner middle tube, a single-cavity inner tube, a flexible TIP head, a chronic dilator and an adjusting handle. The covered stent comprises a proximal end bare crown stent and a telecentric end covered stent which are connected with each other. According to the ascending aorta covered stent and conveying system assembly and the using method thereof, the problem that the ascending aorta dissection is not suitable for minimally invasive surgery is solved, the death rate and the complication occurrence rate in the surgery period are reduced, the needed hospitalization and postoperative monitoring time is shorter, and the outer sheath tube has enough axial and radial supporting force and compliance.