||In this paper I want to present some considerations about graphic standards applied to CAD drawing and object of teaching in I Faculty of Architecture of Polytechnic of Turin. They concern both the specific formats of CAD’s software (as the layers, the file naming…) and the relationship between Italian and European Graphic Standards (UNI and ISO) and CAD systems of representation about the line thicknesses, the text styles and dimensions, the scales, the material renditions… Aim of the research is to introduce the students of the first year of Architecture to the problems of drawing standards applied to the architectural design. With regard to layer standards were analyzed in particular the “AIA CAD Layer Guidelines” related to the “University of Kansas Layer Standard”. Starting from these two sources I have synthesized the format of an architectural scale drawing (1:200-1:50) in a limited number of layers, useful for beginners both in architecture and in CAD. With regard, for example, to material renditions, were compared the “Basic conventions for representing areas on cuts and sections”, proposed by UNI ISO, with the hatches offered by software, and were selected and customized the most useful in architectural drawing. The results of this work, partial and continuously updated, consist of a series of proposals oriented to optimize the students’ method of CAD drawing, complying with the existent graphic standards.