Play is the main activity of preschool children and games are tools and means of comprehensive education. The game design aims to develop vocabulary for 4-5 year old children through corner activities that attract the attention of educators. This article researches the design of games to develop vocabulary for 4-5 year old children through corner activities at Mang Non III kindergarten, District 10, Ho Chi Minh City. Based on the principles of ensuring purpose, attractiveness, systematicity, diversity, suitability and development of children, the article proposes a game design process. aims to develop vocabulary for 4-5 year old children through corner activities that contribute to improving the quality of preschool education.