Abstract: Based on the tacit theory, using the method of literature date andexpert interview, this paper explores the tacit knowledge of college teachers, and the dominant strategies. It is in favour of improving the perception,comprehension and utilization of knowledges for students, promoting teach and study effectively, revealing students' individualities, developing theirinnovation abilities. According to the students' cognitive laws, psychological characteristics, through improving teaching skills, using metaphor thinkingand methods correctly, and using suitable body languages and atmosphere, teachers can impart tacit knowledge to students.