A rotating inflatable ornament has a main chamber, a bottom chamber, a rotating chamber, a rotating device, a joint tube and a blower. The bottom chamber is attached to a bottom of the main chamber. The rotating chamber is mounted in the main chamber and has a main air-entering tube, multiple jet tubes and multiple inflatable adornments. The main air-entering tube communicates with the bottom chamber. The rotating device is attached rotatably to the main chamber. The joint tube is attached to the main air-entering tube and is mounted rotatably in the bottom chamber. The blower is mounted in the bottom chamber and fills air into the bottom chamber. The air coming out of the jet tubes makes the rotating chamber rotate.