Gas cylinder fixing device

The invention discloses a gas cylinder fixing device. The gas cylinder fixing device comprises two fixing pieces arranged in parallel, at least two sets of warp-direction assembling mechanisms and atleast one weft-direction assembling piece; the fixing pieces are arranged on a fixed object; each warp-direction assembling mechanism comprises at least one warp-direction assembling piece; one end ofeach warp-direction assembling piece extends into a gap between the two fixing pieces and is fixedly connected with the fixing piece located on the upper portion through a bolt; the weft-direction assembling piece is arranged above the warp-direction assembling pieces; the weft-direction assembling piece and the warp-direction assembling pieces are fixedly connected through bolts; and the weft-direction assembling piece is parallel to the fixing pieces. The gas cylinder fixing device is used for fixing multiple types of gas cylinders with different sizes and multiple numbers in a gas cylinderstorage warehouse; the fix