Diesel particulate filter( DPF) is one of the most effective after-treatment technologies for diesel exhaust particulate
pollution. It is a important measure to meet strict automotive diesel engine emission regulations in the future. DPF purification
mechanism was introduced in this paper. The research status of the regeneration technologies of DPF in recent years were
discussed and various regeneration technologies principle and its existing problems were discussed. At last,the research
direction of DPF regeneration technologies in the future was put forward