The invention discloses an additive manufacturing equipment or technology performance measurement method. A standard test workpiece is manufactured by using an additive manufacturing equipment or technology to be assessed; mechanical property measurement is performed by the geometrical characteristics of the standard test workpiece, and performance assessment is performed through statistics and mathematical optimization; the standard test workpiece comprises a center cylinder which is arranged at the center of the upper surface of the standard test workpiece, and four sets of positioning pins and positioning holes; an inclined slope, step slots, step concave tables, slot curves, thin-wall curves and multiple holes and pins of different diameters are arranged between the four sets of positioning pins; and a transverse rhombic slot, a longitudinal rhombic slot, a regular rhombic slot, a square slot and a circular slot are equidistantly arranged on one side edge of the standard test workpiece. The limit of manufacturing capacity of the additive manufacturing equipment or technology can be ensured, and a part of error sources can be identified and quantified so that the use method is simple and low in cost without limitation of measurement equipment, and universality is great and thus the method is suitable for multiple types of additive manufacturing equipment or technologies.