An apparatus and method for testing a ubiquitous service or a ubiquitous device using a uniform object model are provided. Because a virtual ubiquitous environment is constructed with devices, services, users, layouts, and the like, physical construction of the ubiquitous environment to test services or devices is not needed. Therefore, the effectiveness of the ubiquitous device or service can be confirmed without requiring a ubiquitous environment to be physically constructed. Additionally, time or cost of constructing a ubiquitous environment can be reduced. Because a variety of environments can be easily constructed through the test of devices or services, the performances of the devices or services can also be improved.