The invention discloses application of a porous metallic filter and a vertex regeneration device for a diesel engine on the diesel engine, which belongs to the technical field of environmental protection and the industrial field of electromechanical industry. The product is mainly prepared by the steps of: preparing a soot filter of the diesel engine by porous metal, and adopting vertex regeneration technology outside the filter. An exhaust pipeline of an engine is provided with two channels, namely A and B, each channel is provided with a set of porous metallic filter and a regeneration device thereof, and the regeneration process is optimized by feeding back the regeneration temperature and pressure and adjusting the vertex regeneration current. The porous metallic soot filter for the diesel engine uses vertex technology to realize the regeneration and the combination with electronic dynamic feedback control; and an optimization control model matched with a vehicle type is established and mainly performs dynamic optimization control on parameters such as carbon deposition amount, waste gas pressure and waste gas temperature and the like to achieve the optimum regeneration process, which has high regeneration efficiency, short regeneration time, low regeneration energy consumption, long service life of products and low cost even if the regeneration temperature and the temperature gradient are low.