The aim of this empirical study was introducing critical discourse analysis (CDA) as a new research technique for assessing oral presentations of EFL university learners Three voluntary EFL participants in Level 8 constituted the sample of the study. They were given each twenty minutes to deliver an oral presentation on the topic agreed upon with them beforehand. The participations were tape-recorded, transcribed, codified, analyzed and then interpreted in the realm of the dimensions of social discourse: speech analysis, processing analysis and social analysis related to  language, power and ideology  respectively. The findings revealed that CDA can be a research technique, an analytic tool and a procedural  methodology that enables a vigorous assessment of social discourse and  what is meant to describe and explain, since language is used as a form of social practice. The study provided a five-step cognitive map as well as CDA sheet with an assessment rubric in order to help the researchers concerned to follow when conducting a similar study.