A device for performing tricuspid regurgitation operation is proposed. The device for performing tricuspid regurgitation operation is easily inserted through the inferior vena cava, the tricuspid valve, and the pulmonary artery in sequence in order to treat tricuspid regurgitation (TR) which is a disease where blood from the right ventricle flows back into the right atrium through an empty space (i.e., orifice) formed by incomplete closing of the tricuspid valve (TV) which is positioned between the right atrium and the right ventricle of the heart. The device includes: a fixing member for pulmonary artery installed in the pulmonary artery； a fixing member for inferior vena cava installed in the inferior vena cava； a connecting tube connecting the fixing member for the pulmonary artery and the fixing member for the inferior vena cava to each other； and a blocking part passing obliquely through the tricuspid valve.
