Disclosed is a thoracic aortic covered stent (100), comprising a bare stent segment (110) and a covered stent segment (120). The bare stent segment (110) comprises a bare waveform loop (111)； the covered stent segment (120) has a small curvature podial region (100c), a large curvature podial region (100a), and two opposite intermediate regions (100b) located between the small curvature podial region (100c) and the large curvature podial region (100a)； and the covered stent segment (120) comprises a first circle proximal waveform loop (121). The stent (100) further comprises a first connection member (131), a first side connection member (132) and a second side connection member (133) all connected with the bare waveform loop (111) and the first circle proximal waveform loop (121), wherein the first connection member (131) is located in the small curvature podial region (100c), and the first side connection member (132) and the second side connection member (133) are located in the two intermediate regions (100b). The stent (100) located near the lesser curvature side (22) with a relatively small radius of curvature has a connection assembly rigidly connecting the bare stent segment (110) and the covered stent segment (120), and through the constraints thereof, the bare stent segment (110) can be effectively prevented from turning over towards the vessel wall during the release process, so that the proximal end of the covered stent segment (120) is securely attached to the wall, thereby avoiding the "turnover" effect.L'invention concerne une endoprothèse couverte aortique thoracique (100), comprenant un segment d'endoprothèse nue (110) et un segment d'endoprothèse couverte (120). Le segment d'endoprothèse nue (110) comprend une boucle nue en forme d'onde (111) ； le segment d'endoprothèse couverte (120) présente une région podale de petite courbure (100c), une région podale de grande courbure (100a) et deux régions intermédiaires opposées (100b) situées entre la régio
