In this paper, a new framework for MRBT(Multimedia Ring Back Tone) is presented, which is based on the traditional Spring + Hibernate development framework. It extends and optimizes the hierarchical architecture, uses the design of Interface-oriented programming and AOP (Aspect Oriented Programming) and unifies the development methods of portal system. This framework consists of identified data, reasonable business processes and exception handling system. Portal development using the framework can simultaneously support multiple access modes and ensure high reusability and maintainability. UP framework can also be promoted as a development framework for the most portal system.