An interactive displaying method, a control method and an apparatus for achieving displaying of a holographic image are provided. The interactive displaying method comprises: scanning a 3D space by controlling signal transmitters arranged in a matrix to transmit signals; determining a target object in the 3D space; and determining a first position of the target object and displaying a viewable image corresponding to the target object at a second position of a display region. The control method comprises: scanning a 3D space by controlling signal transmitters arranged in a matrix to transmit signals; determining a gesture operation of a target object; determining the gesture; and executing a control operation corresponding to the gesture. The apparatus comprises a display unit, a signal detecting unit, a position determining unit and a display control unit.