Method of manufacturing honeycomb structure

A method of manufacturing a honeycomb structure, the method comprising:

• a circumferential coat layer forming process of applying a circumferential coating material on a circumferential surface of a ceramic honeycomb structure to form a circumferential coat layer,
• the circumferential coat layer forming process comprising:
• a rotating process of matching an axial direction of the honeycomb structure with a vertical direction to rotate the honeycomb structure by using the axial direction as a rotation center;
• and
• an applying process of discharging the circumferential coating material from a discharge nozzle disposed at a position opposite to the circumferential surface of the honeycomb structure to apply the circumferential coating material on the circumferential surface of the honeycomb structure that rotates, wherein
• in the applying process, a discharge speed of the circumferential coating material, calculated by Equation (1), discharged from the discharge nozzle is 50 to 120 mm/s, and
• Discharge speed V [mm/s]=Supplied amount q [g/s] of circumferential coating material÷(Density ρ [g/mm3] of circumferential coating material×Area S [mm2] of discharge opening) (1).