The article under studies deals with the issue of teaching professionally oriented oral communication in German to future social workers. It is proposed that teaching professionally oriented communication in German should be conducted by means of using the Case Study technology. The paper outlines the stages of preparing and implementing a methodical experiment, which compares two variants of methods of teaching professionally, oriented oral speech to future social workers. The article describes the ways experimental and control groups are formed. The experimental method involves the formation of dialogic and monologue speech of future social workers in German. The results of the experiment are interpreted with the help of the methods of mathematical statistics and prove the hypothesis. The effectiveness of the proposed method and the expediency of using the Case Study technology have been experimentally proven in the article as well.