This study aims to see the effectiveness of the main commodity Buffalo Cow program in Rokan Hilir Regency. In carrying out the program, of course, the Regional Government of Rokan Hilir Regency in this case is at the Food and Agriculture Security Agency wanting to achieve or meet the targets in the Program so that the program is effectively implemented in Rokan Hilir Regency and of course increases the population, especially cow and buffalo. This research uses a qualitative research method with a descriptive research type. The main informants in this study were Supervisor, Recorder, Inseminator, Botanical Inspection Officer, Birth Officer and Breeder. Sample selection is made by (purposive sampling). The result of this article is Production; this program's results can increase the cattle population more quickly and produce good quality offspring. Efficiency; this commander program is implemented based on technical instructions and decrees but has no optimal operational support from the Government of Rokan Hilir Regency; officers or human resources that are still limited by long distances are an obstacle in implementing the commander program