An electric bed or chair movable along with ambient sounds, the electric bed or chair comprising a frame structure comprising a base and a movable frame movably disposed on the base , an actuator having two ends disposed with the base and the movable frame respectively, and a vibrator disposed with the frame structure ; a control unit electrically connected with the actuator and the vibrator to control motions of the actuator and the vibrator ; a receiving unit receiving audio files each having a specific time sequence via a wire or wireless manner; a database electrically connected with the control unit and the receiving unit for storing the audio files received by the receiving unit ; a sound sensor sensing ambient sounds and transmitting signals corresponding to the sensed ambient sounds; and a comparative unit electrically connected with the sound sensor , the control unit and the database , the comparative unit comparing the signals transmitted by the sound sensor with the audio files stored in the database to locate a match audio file of the audio files, which is matched with the ambient sounds, and then transmit control signals to the control unit for enabling the control unit to control the actuator or the vibrator to move in accordance with audio signals of the match audio file; characterized in that the electric bed or chair further comprises a rocker mount disposed below the base , and a first drive device disposed between the rocker mount and the base ; the first drive device is electrically connected with the control unit in a way that the control unit controls the first drive device to drive the base to swing relative to the rocker mount along a first curve . a frame structure comprising a base and a movable frame movably disposed on the base , an actuator having two ends disposed with the base and the movable frame respectively, and a vibrator disposed with the frame structure ; a control unit electrically connected with the actuator and the vibrator to control motions of the actuator and the vibrator ; a receiving unit receiving audio files each having a specific time sequence via a wire or wireless manner; a database electrically connected with the control unit and the receiving unit for storing the audio files received by the receiving unit ; a comparative unit electrically connected with the sound sensor , the control unit and the database , the comparative unit comparing the signals transmitted by the sound sensor with the audio files stored in the database to locate a match audio file of the audio files, which is matched with the ambient sounds, and then transmit control signals to the control unit for enabling the control unit to control the actuator or the vibrator to move in accordance with audio signals of the match audio file; characterized in that the electric bed or chair further comprises a rocker mount disposed below the base , and a first drive device disposed between the rocker mount and the base ; the first drive device is electrically connected with the control unit in a way that the control unit controls the first drive device to drive the base to swing relative to the rocker mount along a first curve . <EOS>