Abstract: To meet the purpose of design and application of trunconical hypercumulation shaped charge structure, a theoretical model describing the formation of hypercumulation jet was established. By comprehensively considering key parameters such as liner, explosive, shell and stand-off, a dimensionless theoretical model of the main parameters affecting the forming characteristics of hypercumulation jet was proposed. By means of orthogonal design and numerical simulation, effects of liner cone angle, liner thickness, additional body thickness, additional body edge projection length and stand-off on the main indexes of jet were studied, and the primary and secondary relationship of the five key factors were obtained.