As an important analysis theory in critical discourse analysis, Fischer's three-dimensional analysis model has been used more and more to analyze news discourse. The Fischer three-dimensional analysis model includes vocabulary and sentence descriptions in text exercises, as well as messages in discourse exercises, describing the source of events and discourse practices, and explaining international and domestic backgrounds. The development of intelligent language recognition technology is supported by people from all walks of life, and its development is very rapid. Many research results have been extended from theoretical research to daily applications. The convenience of intelligent speech recognition technology has greatly changed our way of life, and intelligent speech recognition technology has been able to recognize human voices by recognizing discrete symbols. At present, the research on classroom discussion is mainly based on the direct observation experience of researchers on classroom teaching. In the environment of rapid development of information, we will find more effective classroom discourse analysis methods, provide fast and convenient classroom discourse analysis skills, and make classroom discourse analysis more efficient. The innovation of classroom discourse research methods in an informed environment provides convenience for English language analysis in an intellectual classroom environment. The application of English language makes various applications of English in intelligent recognition technology systems more and more extensive.