The purpose of this study is to analyze the relationship between metacognitive ability and learning autonomy as a strategy for improving student learning outcomes. Metacognition has a major contribution to the success of learners because it is mainly concerned with the process of thinking. For this reason, the classroom environment must be designed to allow learners the opportunity to autonomously determine their learning strategies. Autonomous learning itself has a close relationship with the ability of learners to express, be more creative, have self-esteem, and understand conceptual learning that is more challenging. The method used in this research is the descriptive correlational method, with a sample of 30 students from the Department of Language and Arts. The research sample was students from the first semester of 2018/2019, who were chosen randomly. Data were collected through questionnaires and tests. The results showed that there was a significant correlation between metacognitive ability, learner's autonomy, and learning outcomes in Indonesian language courses. These results indicate that there is an encouragement for students to increase their learning capacity for themselves. Also, they are encouraged to develop their learning strategies and have the opportunity to make decisions, especially in developing ideas.