The development of information and communication technology has driven a paradigm shift in education, particularly in learning strategies oriented toward developing 21st-century competencies. One approach relevant to these demands is deep learning. This learning not only emphasizes cognitive mastery of material but also encourages students to understand meaning, connect concepts, and develop critical and creative thinking skills. In the context of elementary education, deep learning has great potential to improve students' language competencies and critical thinking through activities that encourage analysis, reflection, and meaningful communication. This literature review article aims to review the role of deep learning in improving language skills (listening, speaking, reading, and writing) and critical thinking skills in elementary school students. The method used is a literature review by reviewing various research results from national and international journals published between 2020 and 2025. The results of the study indicate that the application of deep learning can improve the quality of the language learning process through active, collaborative, and reflective student-centered learning strategies. Furthermore, this approach has proven effective in developing critical thinking skills because students are trained to interpret information, evaluate arguments, and generate new ideas. These findings underscore the importance of transforming elementary education toward a deep learning paradigm that supports language acquisition while strengthening children's critical thinking skills.