Abstract: In order to study the interference characteristics of reactive armor with different types of energetic materials against shaped charge jets (SCJ) and the influence of normal angles on various reactive armor configurations, three types of materials with typical reaction characteristics were selected, numerical simulations of SCJ penetration into reactive armor were conducted. The accuracy of the numerical simulation method was validated according to experimental results. Based on a validated numerical simulation method, the penetration resistance of explosive reactive armor, active reactive armor, and inert reactive armor against SCJ was analyzed, as well as the influence of normal angles on the SCJ disruption capabilities of the three types of reactive armor was analyzed. A comprehensive assessment of the differential mass efficiency factor of the reactive armor and the collateral damage factor of the reactive armor was conducted, while also investigating the influence of the normal angle on the SCJ interference capabilities of the three types of reactive armor. Additionally, a composite layered reactive armor was designed. The results show that explosive reactive armor can offer the strongest protective capability, but its collateral damage is nearly 60 times higher than that of the other two types of reactive armor. Considering the collateral damage of reactive armor's protective performance, active reactive armor is prioritized over the other two types. Compared to the depth of penetration (DOP) of the SCJ in the condition of without armor, the residual DOP of the SCJ was reduced by 82.6%, 44.3%, and 30.4% for explosive reactive armor, active reactive armor, and inert reactive armor, respectively. As the reactive capability of the armor interlayer decreases, the residual DOP of the SCJ gradually increases. When the normal angle changes, the ability of explosive reactive armor to reduce the residual penetration depth of the SCJ is the most sensitive to variations in the normal angle, while the sensitivity of active reactive armor and inert reactive armor to changes in the normal angle is similar. The designed composite layered reactive armor can greatly reduce the collateral damage capability of the reactive armor.