The present invention discloses a process for restoring the hard surface of a wrapper roller. The process comprises the following steps: preheating a roller core before welding, preserving heat for continuously overlaying, performing tempering and heat treatment after welding, and finally carrying out mechanical processing. The process solves the problems of local or large area shedding of roller surfaces, and so on and makes wear resistance, shock resistance and heat fatigability resistance better. The process has the advantages of part cost reduction, good use effect and prolonged service life.