This paper is used the method of literature observation analysis and questionnaire research methods to playing tennis when the concentration of culture. It’s gave the analysis. Through the observation of 12 tennis elective class practice and Simulation games access to relevant information for analysis and inquiry tennis focus the importance and how to raise the tennis focus. After careful observation records access to relevant information as well as in the help of the teacher and the classmates inquiry concluded that tennis concentration does not focus is often the key ball faolt or not play every game is important reason proposed in the usual training and simulation game with strong focus on training.