Based on the diesel engine bench, the influence of regeneration temperature on continuous regeneration rate, temperature field distribution and gas emission was explored by changing the inflow temperature. The test results show that the change rate of pressure drop per unit deposition mass increases by about 69.8% with the deposition of particles in the capture stage of CDPF filter cake layer. During CDPF regeneration, the oxidation of particles is mainly concentrated in the first half of carrier. With the increase of regeneration temperature, the consumption of NO₂ increases, the regeneration rate accelerates, and the total amount of NO_x at carrier outlet decreased slightly and the decreases of CO and THC were 99% and 80%-90% respectively. In addition, the axial temperature in the center of CDPF increases first and then decreases from front to back, and the axial temperature at the edge of carrier increases continuously from front to back. The higher regeneration temperature has the greater axial temperature gradient. The radial temperature decreases from center to edge, and the smaller distance from carrier inlet, the higher regeneration temperature and the greater radial temperature gradient.