The article suggests a description of the process of erratology model teaching; it reveals an author’s conception of teaching complex sentences in the context of this technology. The aim of the research is to work out author’s (erratology) model teaching students of non-philology majors the Russian language. One of the key ideas of erratology model is to teach according to the four concenters: 1) mistakes analysis (CONCENTER 1AO – identification and procedures connected to it); 2) wrking out short grammar commentaries (CONCENTER 2); 3) mistakes analysis (CONCENTER 3AO – training, test-correction); 4) creative production considering the usage of taught constructions (CONCENTER 4). The results allow to talk about that the process of teaching complex structures of the language engeenering-majors is more effective if it is possible to accept the methodological instrument a technology based on the erratology data. It will allow not only to make up a Russian language professional competence, but also to bring foreign student’s undoubted interest to learn a new language, to intensify the learning process itself, upgrade it with technologies, methods of teaching and new system of tasks.