During laser surface remelting, thermal expansion in heating, and contraction of material in cooling, and due to microstructure changes in the heated surface layer, the specimen deforms. This induces volume changes in the material during the process of remelting the thin surface layer and causes internal stresses. By measuring the deformation of the specimen during the remelting process as well as after the laser beam interaction, i.e. to the moment when the specimen cools down to the ambient temperature, it is possible to follow the progress of deformation in the specimen material. It has been found that the information about time-dependent changes in specimen deformation contributes to better knowledge of the conditions during laser remelting and thus better optimization of the process. By continuous measurements of deformation during the laser remelting process, it has been proved that the direction of laser remelting has a considerable influence on the occurrence and size of deformation and results in different degrees of curvature of the specimen on completion of cooling.