This research is about mass media competition between private radio station in Yogyakarta that is Geronimo FM and Swaragama FM because both stations are on Top Brand Radio Station in the city of Yogyakarta which has the same type of format, audience segmentation and characteristic on the broadcasting hour then the type of media content indirectly be the same that can lead to competition between the two radio stations are in getting resources to their support life. This study focuses on broadcast news programs that become the seizure of life support sources between the two radio stations, because news is one of the important elements in a radio broadcast media. To determine how the level of competition in both the private radio station on the news program is the category for news topics and categories circulation of news on the broadcast date period August 1 to August 31, 2016 by using niche theory approach. This research used content analysis methods to analyze the frequency of news topics and news circulation. Furthermore, the data is calculated using the formula Niche Theory to determine how dependent media of news programs (Niche Breadth) and how big is the level of competition between the two media (Niche Overlap) on the news topic category and news circulation category. The results of this research indicate that the Niche Breadth of news topic categories on Geronimo FM and Swaragama FM radio stations are in the category tends to specialists and specialists. Niche Breadth from the news circulation category on radio stations Geronimo FM and Swaragama FM are both in the generalist category. Niche Overlap results in those two categories of the broadcast news program with the value close to zero then the both private radio stations are categorized have a very high competition.