The utility model belongs to the technical field of combined material makes, concretely relates to an appurtenance for controlling layer overlap amount of combined material shop. At present, dry -press process combined material's shop layer still is that manual operation gives first place to, and the popularization that the layer was spread to laser projection location is not quite extensive, and because of the orientating group is difficult to select, overlap amount's homogeneity and size of a dimension are hardly controlled within the desired scope of technical conditions when spreading the layer, causes great influence to the surface quality of product. The utility model discloses an appurtenance for controlling layer overlap amount of combined material shop, this appurtenance include base plate and template, wherein the template is in just has common true edge and the same length on the base plate, the width L of template equals to spread layer overlap amount, is less than the width of base plate. Convenient operation and efficient has improved combined material and has spread the uniformity and the machining precision on layer.