Circuit storage device

The invention provides a line storage device which comprises a box body and a rolling shaft, the box body is provided with a mounting cavity used for mounting the rolling shaft, the left end and the right end of the rolling shaft are provided with a first shaft rod and a second shaft rod respectively, the outer wall of the rolling shaft is provided with protrusions, and the left end and the right end of the box body are provided with a first through hole and a second through hole which can be communicated with the mounting cavity respectively. The first shaft rod and the second shaft rod extend into the first through hole and the second through hole respectively, a penetrating hole communicated with the mounting cavity is formed in the box body, and the protrusion corresponds to the penetrating hole. A line needing to be stored is folded in half, then fed into the mounting cavity through the penetrating hole and then hung on the protrusion, and any one of the first shaft rod or the second shaft rod is pushed