Abstract: The rapid progress and development of science and technology have caused quiet changes in today's society. With the expansion of the application of big data technology and the continuous development of AI artificial intelligence technology, the current development from smart buildings to smart buildings is gradually transforming from blueprints to reality, and future buildings will become safer, more livable, energy-efficient and environmentally friendly.Based on this, this article first gives a brief overview of the connotation of big data technology, then analyzes the application of the JEM platform based on big data and AI technology, and finally looks forward to the development direction of the combination of the Internet of Things and smart buildings for reference.