To provide a turbo fan having a structure which can extend a life of a die for manufacturing the turbo fan and the die for manufacture.

This turbo fan is provided with a hub connected to a rotation shaft of a driving device, a plurality of blades mounted in the radial state on an outer circumference of the hub, and a shroud connected and attached to the plurality of blades on the side opposite to the hub with the blade between them, the hub, the blades and the shroud are formed integrally, and the shroud is provided with a first extension part protruding and extending from the connection part connected to the inner side of the blade in the inner radial direction of the rotation shaft and a second extension part extending in a straight line from the first extension part in the direction of the rotation shaft of the hub on the opposite side.