Abstract: A speaker fast mounting assembly and a method of use. The loudspeaker fast mounting assembly includes: a pressing edge; a locking and releasing assembly comprising a fixed support and a sliding and limiting piece, the fixed bracket is provided on the sliding and limiting piece of the locking position and the release position, the locking position and the release position is arranged between the channel, the sliding and limiting piece sliding fit in the channel; the pressing block, the pressing block is connected to the slide and on the limiting piece, the briquetting of the press with the pressure-side member of the fixture; the elastic member, the elastic member so that the block and the pressure-side member to maintain the pressing state; the unlocking member used for the sliding and limiting piece are balanced in order to make the sliding and limiting piece from the self-locking position.