The game based teaching method is specifically aimed at assisting English teaching, communicating in English, and widely used in English classrooms or extracurricular activities. Compared with Chinese, primary school students lack a certain language environment for English learning and do not have a true understanding of English learning. Therefore, English teachers should use games to mobilize students’ enthusiasm for learning, and follow the basic principle of “happy teaching” to adapt to students’ development. However, there are still many problems with game teaching methods in English teaching. This thesis wants to explore the current situation of the application of games in English teaching and research its countermeasures, so that more front-line teachers can benefit from it.This study is based on Piaget’s cognitive development theory and happiness education theory. By using the methods of questionnaire survey and interview, this paper delves into the current application status, existing problems, and cause analysis of game teaching methods in primary school English classrooms. And the study summarized the shortcomings of current primary school English teachers in the application of classroom game teaching methods.It is found that the main problems are: in ordinary classes, the use of game-based teaching methods is still relatively limited; students’ game goals are unclear and cannot be applied to practice; the class is chaotic; and all students cannot participate in the game.The study suggests that the teacher enrich the theoretical knowledge of game teaching methods and strengthen their application. Schools can provide training for teachers at appropriate times, or regularly order publications or books related to games. Teachers can also learn more from successful game application cases to improve the application ability of game teaching methods. For the student group, research suggests that students clarify the purpose of games and enable them to understand the true intention of the teacher in using games in the classroom. Secondly, it is necessary to strengthen students’ classroom discipline.Through in-depth exploration of the practice of game teaching methods in primary school English classrooms, it has reference value for primary school English teachers to correctly and effectively implement game teaching methods, and has profound significance for better implementing game teaching methods in primary school English classrooms.