Researchers emphasise the effect of metacognition on learning and teaching. The purpose of this article was to investigate the metacognitive knowledge and skills of physics students at Farhangian University in mechanicchr('39')s problem solving. This qualitative study is an interpretive phenomenology and the methods of think-aloud protocols, interviewing and observation in natural conditions have been used to collect data and evaluate the metacognitive knowledge and skills of students and instructors at Farhangian University. The sample of the current study were forty two girls in the first semester, who studied physics at the Nasibeh Campus of Farhangian University in Tehran. Metacognitive evaluations were also performed to solve problems in mechanics in the kinematic field. In this study, the samples included students who had successfully passed the university entrance exam in the previous six months. In addition, one day before the start of the research, they participated in the universitychr('39')s basic physics exam, therefore, they had the necessary preparation and knowledge to solve the problems. The study was conducted in three stages. In the first stage, two to three problems were solved by the students with the think-aloud protocols. To familiarize students with the think-aloud protocols, they practiced this method with the help of a researcher. In the second stage, the researcher interviewed six students who were more interested and cooperative. In the third stage, the behavior of all forty-two students was observed and recorded during the academic semester, while solving problems under normal conditions. The results showed that most of the students surveyed had moderate metacognitive knowledge and very poor metacognitive skills