A filament winding apparatus includes a working area in which an operator performs an operation to at least one bobbin and/or liner on a conveyance path, an operation area in which a winder is driven, a buffer area between the working area and the operation area in a conveyance direction on the conveyance path, and an outside area that is neither the working area, the operation area, nor the buffer area being provided; and first fixed fences provided at borders between (i) the operation area and the buffer area and (ii) the working area and at the borders between (I) the operation area and the buffer area and (II) the outside area; and a first door provided at a border between the working area and the buffer area, and wherein the buffer area includes an accumulator portion capable of accumulating the at least one bobbin and the liner.