Aiming at the problems existing in conventional parametric modeling of explosion model, a new modeling method is proposed. Taking the common explosive-propagation media and structure model as an example, the conventional modeling methods and their limitations are discussed. A new modeling and meshing method are proposed to adapt to parametric modeling. The calculation results are given when explosives and wellbore are located at different locations. The simulation results show that the proposed method can solve the problem that it is difficult to parameteric modeling when the projection of explosive and well intersect. The new parametric modeling method has stronger flexibility and applicability, which can provide guidance for engineers in explosion research.