Beacon technology is a combination of user and space environment ofintelligent technology, beacon is a low-power Bluetooth sensor technology, the library can use this equipment to understand the use of library physical space and collections. The library can be combined with a smart mobile device via Beacon technology, allows users to receive the latest library information, users can also search on the smart mobile devices on various collections. Users can also direct the user to the bookshelf where the destination book is located, depending on the search needs entered by the user. This study discusses the user's intention to use Beacon in combination with the technology acceptance model and the innovation diffusion theory.