Abstract: Disclosed is a guitar with a replaceable soundbox. The guitar with a replaceable soundbox according to the present invention comprises: a soundbox; a neck having a neck hill that protrudes therefrom and is detachably coupled to one side of the soundbox, and having a plurality of strings disposed to hold chords in accordance with a scale and harmony; a bridge detachably coupled to the soundbox such that one end of the plurality of strings is fixed; a playing part including a head extended to the neck such that the other end of the plurality of strings is fixed; and an adjustment part, coupled on the head, for adjusting the tension of the plurality of strings to increase or decrease.