To improve the effect of classroom teaching is the goal that every teacher pursues constantly. This paper expounds how to improve the effect of junior high school physics classroom teaching combined with teaching practice. 1、 Good teacher-student relationship and subject emotion are the emotional basis of improving classroom teaching effect. 2、 Advanced education and teaching concept is the theoretical basis for improving the effect of classroom teaching. 3、 Preparation before class is the knowledge base to improve the effect of classroom teaching. 4、 Flexible organization of classroom teaching is the key to improve the effect of classroom teaching. 5、 One quarter of the church is the guarantee to improve the effect of classroom teaching. There are 40 to 60 students in a class. In order to improve the effect of classroom teaching, I use a little bit of teaching method. 6、 It is a magic weapon to improve the effect of classroom teaching to solve the difficult problems with special effects. Key words: classroom teaching effect, emotional concept, preparation, organization, guarantee, solution, classroom teaching is the most basic component of teaching activities, and the main channel for implementing quality education and students to acquire knowledge and improve their ability. The quality of classroom teaching determines whether the teaching quality can be improved or not, which is directly related to the level of school teaching quality. Improving the effect of classroom teaching is the goal that teachers constantly pursue. How to improve junior high school physics classroom teaching effect? Combined with my teaching experience, talk about my practice. 1、 Good teacher-student relationship and subject emotion are the emotional basis to improve the effect of classroom teaching. In physics teaching, to improve the effect of physics classroom teaching, we should pay attention to the cultivation of students' non intellectual factors, especially emotional factors. From the teaching theory and teaching practice, good teacher-student relationship and subject emotion can make students full of interest and confidence in learning physics, and then actively participate in classroom teaching.