The invention discloses a production method for rolling a crack-free steel plate in a flame-cleaning-free mode of a cracked continuous casting billet. The method comprises the technological processes of stack cooling of the casting billet for 24-48 hours, identification of the crack depth, heating through a pusher heating furnace, rolling through a 3800m rolling machine, ACC laminar cooling, straightening through an 11-roller thermal straightening machine, stack cooling, thermal treatment, finishing, external inspection (magnetic particle examination and ultrasonic flaw detection), flaw detection and warehousing. By virtue of optimization of heating and rolling processes, the continuous casting billet with a slight surface crack can be free from flame cleaning, the crack-free steel plate can be produced by being directly fed into a furnace and rolled, and the aims of eliminating the flame cleaning process and reducing the production cost are achieved. The rolling method is promoted in actual production and greatly facilitates rolling of the continuous casting billet with the slight surface crack, the production process is shortened, the yield is improved, and the higher economical benefit is gained.