Among many English teaching methods, game teaching is undoubtedly an important way to stimulate and maintain primary school students' interest in English learning. Games satisfy children's nature, and stimulating their thinking in games is what they are most willing to accept. In primary school English teaching, the cultivation of interest is the key to learn English well. Stimulating students' interest in learning English is an important task in primary school English teaching, and reasonable game design is helpful to cultivate primary school students' interest in English. This paper discusses the background and practical significance of game teaching, reviews the practical experience of game teaching at home and abroad, analyzes the feasibility of primary school English game teaching, explains the significance of primary school English game teaching, and puts forward the basic principles of primary school English game teaching combined with teaching practice. Of course, in the real education and teaching, we will encounter all kinds of difficulties. How to implement the game teaching more comprehensively and deeply is a great difficulty for all primary school English teachers. It is our goal to implement the game teaching better in primary school English.