English language is a common language that plays an important role in the communication; therefore, English language education is necessary for all early childhood.  Learning English certainly affects the lives of all children now and in the future. To focus on the children to apply the English language to communicate in today’s social world, managing the English language learning for early childhood with happiness is important because when children feel happy, they will be able to use the English language with their families and the people around them. Happiness is crucial for children since it can prepare children to learn the English language completely. To answer the questions above, this article helps to build understanding regarding the English language acquisition for early childhood by gathering relevant data and research on principles of organizing English language learning activities, English acquisition theory, happy learning, the boosting of happiness learning the English language and an example of happiness learning the English language in LA-OR Plus project.