A duo caroling doll with rotating head includes at least two doll bodies. Each doll body includes a bracket, a foldable coat covering the bracket, a sounding device, a plurality of light-emitting diodes (LEDs), a wire, a rotating device, and an external interface. One of the doll bodies further comprises a circuit control device, a power supply, and a switch respectively connected with the circuit control device and the power supply. The circuit control device is respectively connected with the sounding device, the LEDs, the rotating device, the switch, and the external interfaces through the wire. The external interfaces of the two doll bodies are connected together. The circuit control device controls the two doll bodies to operate the sounding device, the LEDs, and the rotating device thereof in turn.