The aim of the diploma thesis is experimental determination of strength of bonded joint with surface modified laser a. The theoretical part deals with knowledge and concepts in the field of laser technology, the principle of use and also describes the theory of gluing and the factors influencing this process.In the practical part of the thesis we paid attention to the characteristics of the materials used and also to the description of the test method for determination of the shear strength for the static load.The evaluation of the work contains a summary of the strengths of the bonded joints. Furthermore, the evaluation involves a comparison of the different types of material at different laser intensity intensities using different adhesives. It also characterizes the effect of surface treatment on the traceability property.Keywords: laser, engraving, cutting, glue, bond strength