身体语言是人类活动中一种特殊的非语言表达形式，而体育课的主要教育方式为身体活动，在师生互动中获得信息的主要途径就是教师的身体语言，它对学生的行为和发展都会产生间接或潜移默化的影响。本文从身体语言功能的视角出发，采用观察法、问卷调查法、数理统计法和文献资料法，对北京市三帆中学的9名体育教师和他们在课堂上使用的身体语言以及授课学生三个方面进行调查研究，依据体育教师身体语言不同的功能进行分析研究，提出提高体育教师身体语言运用能力的建议和策略。通过对比分析得出以下结论： 1.体育教师对于身体语言的运用缺少正确的认识，自身认为点头、摇头、低头、嘴巴动作、眉毛动作、环视、盯着看、竖大拇指、拍手、其他手势、触碰学生和示范动作都有自我情感表达的功能，可见在运用过程中也会降低身体语言的使用效率，出现无效的身体语言。在教学中老师要减少低头动作以及与学生沟通时出现的无意识的手掌指和手按下动作。 2.体育教师有效和具有鼓励性质的身体语言会对学生产生积极的影响，增加点头等鼓励性动作会增加学生对老师身体动作的好感度，大部分学生会注意老师的身体语言，认为体育老师的身体语言对上课是有帮助的，减少无意识动作会对听课有好处。 3.从解释-质性的观察性描述对不同体育教师身体语言运用特点进行分析发现，体育老师在面对相同性别的学生时会更多的使用接触性身体语言进行教学和纠错，并且每位教师对身体语言的使用都有自己独特的地方，没有发现与教学内容之间的太大关联。

Body language is a special form of nonverbal expression in human activities. The main mode of physical education is physical activity. The main way to obtain information in teacher-student interaction is the body language of teachers. There will be indirect or subtle influences to the behavior and development of students. From the perspective of body language function, this article used observation method, questionnaire survey method, mathematical statistics method and literature data method to discuss 9 physical education teachers and their body language and students in Sanfan Middle School in Beijing. Analysis and research based on the different functions of physical education teachers' body language and put forward suggestions and strategies to improve the body language skills of physical education teachers. Through comparative analysis, the following conclusions are drawn: 1. Physical education teachers lack proper understanding of the use of body language. They think that they nod, shake their heads, bow their heads, mouth movements, eyebrows movements, look around, stare at the eyes, thumbs up, clapping hands, other gestures, touching students and demonstrating actions have the function of emotional expression. It can be seen that during the application process, the use efficiency of the body language is reduced, and invalid body language will appears. In the teaching, the teacher should reduce the low-head movements and the unconscious palm and hand presses that occur when communicating with the students. 2. The effective and encouraging body language of physical education teachers will have a positive impact on students. Increasing the motivational actions such as nodding will increase the students' favor for the teacher's physical movements. Most students will pay attention to the teacher's body language and agree with that physical language of teachers is useful for class and reducing unconscious behavior will be good for class. 3. From the observation-quality observational analysis, the analysis of the characteristics of different physical education teachers' body language use found that teaching students of the same gender, they will use the contact body language for teaching more frequency. Every teacher’s body language has its own characteristics and there is no big correlation between it and the teaching content.