In this study discusses customer service performed by PLN Rayon Karebosi. It is known that Makassar is one of the Metropolitan City in Indonesia which has a considerable population, which is where Makassar requires a lot of electricity supply. The amount of electricity demand affects the number of PLN customer service requests. One of PLN's service offices in Makassar is PLN Rayon Karebosi. Rayon Karebosi has only been operating for about a year and has more customer service requests than any other Rayon. Although still new, but Rayon Karebosi has been able to resolve complaints above 70% compared to other Rayon which is just under 70%. This research is qualitative descriptive research. Researchers make observations, and study documents, and interview techniques to obtain data. This research focuses on customer service performed by Customer Service Officer at PLN Rayon Karebosi. This research aims to find out customer service procedures performed at PLN Rayon Karebosi. In this study, researchers used six theories to test data from research objects. Of the six theories used, only four are applied to Rayon Karebosi, ie SOP customer service, excellent service, service ethics and communication process. While the other two theories are not applied to Rayon Karebosi, the theory of complaints handling and service theory. In this study found that the form of complaints referred to by PLN Rayon Karebosi is any form of service requests or complaints related to electricity customers. Service requests submitted at PLN Rayon Karebosi are direct complaints such as new tides, add power and complaints related to customer electricity billing issues. The researchers found that no evaluation was conducted at PLN Rayon Karebosi. The absence of after sales service to customers who have been handled either in service, or in complaints. Still lacking the tidy documentation done on PLN Rayon Karebosi.