Abstract: A speaker fastening mechanism includes a first fastening component installed inside an audio device, a second fastening component installed inside the audio device and disposed on a side of the first fastening component, a speaker unit whereon a first fixing part and a second fixing part are formed, a first elastic component wedged in the first fixing part and fastened inside the first fastening component, and a second elastic component wedged in the second fixing part and fastened inside the second fastening component in a rotating manner after the first elastic component is fastened inside the first fastening component.