A method for peer-to-peer multimedia data sharing suitable for an electronic device is provided. The method includes the following step: scanning at least one sink device having Peer-to-Peer connectivity; determining a candidate device from the at least one sink device according a distance between the electronic device and the at least one sink device; deriving a beacon from the candidate device; establishing a Peer-to-Peer connection with the candidate device according to the beacon; and transmitting multimedia data to the candidate device.