1. Technical Field of the invention set forth in the claims The present invention relates to a user interface of the DMB receiving terminal equipment, in particular the video and data services are received through one ensemble from a terrestrial DMB receiving terminal device to the service providing method using the PIP function to provide at the same time through the PIP function thing of. 2. The invention is to solve the technical challenges The present invention by providing a way to by to provide data services and video services in terrestrial DMB receiving terminal device by using the PIP function, the PIP feature that can be provided for two or more services to the users at the same time to provide a service providing method that is an object. 3. The gist of the solution of the invention, The present invention is a service providing method using the PIP function in the terrestrial DMB terminal apparatus receives the key for the use of a predetermined DMB service PIP function comprising: a first step of displaying a list of services in the ensemble now in service; A second step of selecting a desired item within the list of services; If the first entry of a predetermined "exchange" that the predetermined entry item "exchange" to determine the selected item selected in step 2. Step 3 is to determine the terrestrial DMB terminal apparatus is currently performing the PIP function; If the PIP function in the current third stage being performed, a fourth step of switching the service of the main service and the sub-picture screen of the PIP function; And when the first non-predetermined entry item "exchange" item is a predetermined item selected above to check whether the "exchange" is selected in step 2, comprising a fifth step of displaying said selected prescribed item in PIP screen . 4. important use of the invention The present invention used to fight like a terrestrial DMB system. Terrestrial DMB, PIP, exchange