The teaching goal is the concrete and clear expression of the visible behavior that learners should show after teaching. Teaching goal, also known as behavior goal, is a technical term of educational technology. This term is used to emphasize the visibility and measurability of educational effects. The teaching purpose is the general and overall requirement to realize the educational purpose in the teaching field, and it is the task that teachers should complete in the teaching process. It is fundamental, long-term and stable. The main difference between purpose and goal is that the purpose is to achieve long-term expected effect through an activity, while the goal is to achieve short-term effect through an activity. The purpose of teaching embodies the will and objective requirements of society, and it is more mandatory in the form of compulsion. However, the teaching goal is only to guide the determination of teaching activities. According to the requirements of curriculum standards, teachers should focus on the basic requirements that most students should achieve through learning in classroom teaching design, which is realistic, concrete and operable. The essence of the difference between teaching purpose and teaching goal is the difference between two educational viewpoints and teaching concepts.