The invention discloses a method for producing a lampblack-free gas hood lining of a smoke exhaust ventilator. The method comprises the following steps of: (1) uniformly stirring white cement, black cement, mountain flour and gypsum powder in a mass ratio of 3:3:1:1 to form lining powder, and adding glue to ensure that the mixture is muddy so as to prepare gas hood lining mud; (2) coating the lining mud in a gas hood module, wherein the thickness is 0.1 to 0.3 centimeter, covering a layer of gauze or steel wire gauze, coating the lining mud on the gauze, wherein the thickness is 0.1 to 0.3 centimeter, covering a layer of gauze or steel wire gauze, coating the lining mud on the gauze, wherein the thickness is 0.1 to 0.3 centimeter, and hardening and demoulding to prepare a gas hood lining blank; and (3) polishing the inner wall of the gas hood lining blank, and spraying the gas hood lining mud on the inner wall of the gas hood lining to ensure that the surface is smooth so as to obtain the lampblack-free gas hood lining. Lampblack is not adhered to the lampblack-free gas hood lining so as to ensure a clean and tidy environment.