Some basic concepts of textual understanding, from the psychology of speech, are presented and the meta-control of understanding strategy is described, such as a proposal for psychological research on textual understanding. To this end, first, concepts related to the understanding of the text, textual representation levels and cycling processing are developed; as soon as possible, the notion of metaphilition is introduced; then the meta-control strategy for understanding is explained and some of the investigated variables associated with this strategy are analysed; finally, and by way of conclusion, the relationship between scrutiny of understanding and academic performance is analysed. Presented are some basic concepts of textual Comprehension from the physcology of discourse. The description of a metalbernitive strategy of Comprehension monitoring is presented as a psychological research method for textual Comprehension. In this sense the article Develops some concepts relating to textual Comprehension, representation levels, and processing cycles, afterwards metojnition is introduced. Then the metalbernitive strategy of Comprehension monitoring is expressed and a set of related variables are analysed. Finally, as a conclusion, links between Comprehension monitoring and students achieved are analogue.