The invention discloses a baby carrier, which comprises a frame, wherein the frame is provided with a supporting arm for supporting a seat bag or an automobile seat or a sleeping basket and capable of rotating. When the supporting arm rotates, a child in the seat bag or the automobile seat or the sleeping basket can swing, thus, the baby carrier not only can be used as a traffic tool or a moving tool, but also has the swing function of a seesaw. The baby carrier has diverse function, and can attract the eyeballs of customers compared with a baby carrier with single function in the background technology.