The invention discloses a lamination table positioning structure. An infrared ray projection lamp is mounted above a lamination table; infrared rays emitted by the infrared ray projection lamp form a positioning cell image on the lamination table; the positioning cell image is formed by the projection of the infrared rays so that the positioning cell image can be formed on a laminated material layer and cannot be covered by the material layer; and when each one layer of material is laminated, the material can be assisted to be positioned through the positioning cell image generated by the infrared ray projection lamp, and the materials are not laminated in an inclined manner, so that the pressing scrap caused by the fact that the materials are laminated in an inclined manner is avoided.