The government strongly supports the existence of a good governance system, especially in business entities. Good corporate governance is a system that regulates the direction of activities of a company to be carried out, including in setting goals to be achieved and measuring the success of the company's implementation. The implementation of corporate governance reduces agency problems between owners and managers. Good corporate governance can help avoid conflicts of interest between principals and agents. This study aims to see the background of the formation and practice of governance in PDAM Kabupaten Lima Puluh Kota by linking it with agency theory. Processed data is primary data from interviews. The results of the study found that the purpose of establishing a PDAM is that an institution is needed to manage and control the needs of the community in the field of water and an intermediary from the government's responsibility in providing a minimal service system (SPM). And in terms of PDAM governance practices associated with agency theory, there are three themes, namely for the principal intermediary in supervising PDAM Kabupaten Lima Puluh, namely that the supervisory board has complied with the existing rules and regulations. The second point of discussion is about the relationship between the agent and the principal, from the results of the study it was found that the relationship between the principal and agent is in the form of accountability and transparency. And the last topic about corporatization, the results of research on PDAM Kabupaten Lima Puluh Kota, the local government has handed over all authority and management fully to the PDAM management to manage and manage. However, the full handover to local governments will still be controlled and supervised by PDAM activities assisted by the supervisory board