The utility model discloses a booster turbine export transition pipe, including the body, upward flange is connected to the body upper end, and lower flange, its characterized in that are connected to the body lower extreme: the body makes up an organic whole for controlling two parts, the strengthening rib of direction about still setting up on the body. The utility model has the advantages that: because two parts weld into a whole body about having adopted, consequently, the welding seam is shorter, and the size is easy the assurance, in addition, owing to set up the strengthening rib of upper and lower direction, consequently, intensity also greatly increases.