The invention discloses a regeneration method for a honeycomb type SCR (Selective Catalytic Reduction) denitration catalyst, and belongs to the technical field of power environment protection. The regeneration method comprises the following steps: 1) dipping a poisoned honeycomb type SCR catalyst into a diluted sulfuric acid solution, carrying out ultrasonic treatment, then taking out and drying; 2) putting the honeycomb type SCR catalyst treated in the step 1 into a cerous nitrate solution, dipping for 1-3 hours and then taking out; 3) roasting the honeycomb type SCR catalyst treated in the step 2, raising the temperature to be 110 DEG C at the speed of no greater than 3 DEG C/min, subsequently preserving the temperature for 3-5 hours, furthermore, raising the temperature to be 300 DEG C at the speed of no greater than 3 DEG C/min, and preserving the temperature for 8-10 hours to obtain the regenerated honeycomb type SCR denitration catalyst. The active precusor substance cerous nitrate used in the regeneration method is wide in source and good in solvability; the activity of the catalyst subjected to regeneration treatment can be recovered to be more than 80% as compared with the activity of the catalyst which is not poisoned; meanwhile, the regeneration process is simplified, the regeneration cost is lowered, and the regeneration method is simple and convenient to operate, environment-friendly and applicable to large-scale industrial production and application.