The invention relates to the technical field of liquefied petroleum gas cylinders, and particularly discloses a placement device for the liquefied petroleum gas cylinders. The placement device for theliquefied petroleum gas cylinders comprises a base, wherein two left-and-right symmetrical side walls are arranged at the upper end of the base; a bottom support is arranged in the base, is located right under the side walls and communicate with the side walls; protection pillars are arranged on the periphery of the upper surface of the base; the upper ends of the protection pillars are connectedthrough four protection fences; a support pillar is fixed to the center of the base; a support cross rod is arranged on the upper surface of the support pillar; and vehicle wheel assemblies are arranged on the lower surface of the base. The placement device for the liquefied petroleum gas cylinders provided by the invention can prevent sewage and stains on the kitchen floor from corroding the bottom parts of the steel cylinders, is good in stabilization effect, can remind people that a liquefied petroleum gas is used up and needs to be replaced in time, and is flexible and convenient to move.