This article describes the research tendency of the professional languages(LSP) or LSP-Texts in the german countries. The professional communication research in the 1980s has paid attention this object of study. The paper describes especially: two models for the analysis of professional texts(stylistic analysis of professional texts of R. Glaser and macrostructure analysis of professional texts based on the investigation of inclusion signals of K.D. Baumann) are presented. The goal of the stylistic analysis of texts of R. Glaser is the capture o f the specific stylistic features of professional texts. The Analysis model of K.D. Baumann aims to fold professional texts as social and communicative-functionally determined, semantically structured and linear-sequentially and hierarchically organized units. These models make use of elements of different professional-text linguistic approaches and aims to enable the analys is of full text and some texts and of content-functional units under the text level. The article concludes with an outlook on possible combinations of such methods in an integrated professional textlinguistic approach. The professional text-linguistic study of professional text and its performance needs to be applied to a variety.