In this paper, we present the interactive data broadcasting service in T-DMB using middleware technology, which is known as T-DMB MATE (Mobile Application Terminal Environment). The T-DMB MATE defines a number of API to provide various applications with high-level functionalities for interactive data service, supporting a running environment of the applications. Specially, this paper introduces an implementation of T-DMB MATE receiver and some kinds of applications based on the designed T-DMB MATE service. Finally, the effectiveness of proposed service was verified by implementing the receiver and a variety of applications.