The continuous progress of society has continuously changed people's pursuit of education. In the context of the new era, the change of education concept and the fluctuation of the demand for campus space resources have put forward new demands on the teaching space of primary schools. It is difficult to support the practice of a new type of education model. The teaching space design of elementary school campuses is of great significance to promote the healthy growth and comprehensive development of students. The multi-functional teaching space of Tianjin Elementary School, China, has a certain research value as a rare case of open space in the campus of elementary school campuses. The article analyzes the case analysis of the relevant theories of environmental behavior, and proposes a brief view of the space design principles of education space design principles for the open space of elementary school campus teaching open space, interaction behavior, and compound functional design.