In the hot rolling process, the scratches are caused by immense friction between the rollers and the steel plate, and this defect debases the productivity of steelworks. Existing hot strip mills have a structure that fixes the gap between upper and lower rollers; as a result, steel plates inevitably underwent strong friction and shock when passing through the rollers. The new concept, a flying touch method is proposed, which can control the gap between rollers for reducing scratches in hot rolling process. It is essential to simulate in finite element analysis program because the real hot rolling system is too huge and dangerous to have repetitive experiments. This paper introduces the results of the finite element analysis and a method to decrease scratches on the steel plate in hot rolling process.