In order to study the influence of degree of cone angle， cone diameter and thickness of conical liner on shaped charge jet effect and optimize the structure of liner， orthogonal test with three factors and four levels was designed. ABAQUS software was used to simulate the shaped charge jet to penetrate the target， and weighted gray correlation method was used to analyze the orthogonal test results of jet target penetrating. The correlation degree between the angle， diameter and thickness of the cartridge and the effect of jet target penetrating was obtained. The results show that the cone angle has the greatest effect on shaped charge jet， and the cone diameter and thickness have the secondary effect. The parameter combination of liner for the best shaped charge jet target penetrating is： cone angle 61.2°， cone radius 18 mm， thickness 1.05 mm. Using the best combination of parameters， the maximum velocity of the shaped charge jet is 5855 m·s^-1， the depth of the penetrating target is 59.43 mm， and the opening diameter of the penetrating target is 8.24 mm. The research results can provide theoretical guidance for the application of shaped charge jet penetration.