A loudspeaker includes a cavity, a first coil, a first magnet and a linking-up unit. The cavity includes a vibration film. The vibration film is disposed on an opening of the cavity. The first coil is configured to adjust a first magnetic field in the first coil according to the driving of an electronic signal. At least part of the first magnet is in the first coil. The first magnet is movable along a first axis. The linking-up unit is between the vibration film and the first magnet. The linking-up unit is connected to the vibration film and the magnet respectively.