Abstract: This article examines the questions of preparation of students of technical specialties in the higher educational institutions based on the WorldSkills Occupational Standards “Engineering CAD Software”. The relevance of implementation of 3D modeling standards in modern computer-aided design systems into the educational process is substantiated by the need in preparation of highly qualified internationally recognized specialists in different industry fields. The author analyzed competitive tasks of the WorldSkills championships, as well as assesses the importance of graphic training for the development of competences of a modern specialist, who use CAD in their professional activity. The article examines the methodology of geometric-graphic preparation of students of the specialty 15.05.01 Design of Technological Machines and Complexes, specialization in the Design of Metallurgical Machines and Complexes, implemented in the Magnitogorsk State Technical University. A distinct advantage of this methodology is the use of various CAD software and development of the skills for manual sketching of details of mechanical engineering within the framework of studying engineering graphics. The results are acquired of successful implementation of competitive tasks of the Worldskills championships in the educational process. The author concludes that the use of the developed methodology in educational process allowed improving the efficiency of preparation of students.