Content adaptable applications are often used in ubiquitous computing environment, and it aims to service the adaptable contents to users. In this environment, the services are dynamically selected and provided, the contexts are changed frequently. Then, the application services are to be modeled to derive the adaptable service effectively and to reuse the model. Modeling with software features and product line concepts may support for making service decision strategy. In this paper, we propose a service decision modeling technique for content adaptable applications in ubiquitous environment. It consists of defining variation points and their variants, finding out the dependencies between them, and then building the variant selection strategies. These can accomplish to define the decision model based on content adaptable service, and the definition templates help the reuse more effective.