The patron-client relationship (PCR) is a relationship between two parties who need each other. In several Asian coastal countries, in the capture fisheries business, this PCR has been going on for a very long time and continues today. This research aims to analyze patterns of PCRs from social and economic aspects, as well as the nature and changes in patterns of PCRs. The location chosen was fishermen in Rokan Hilir Regency, Indonesia. This research uses qualitative and descriptive methods. Data collection was carried out by interviewing 10 patrons, 50 clients, and 10 key informants and conducting focus group discussions. The research results show the pattern of PCRs in terms of social aspects including social assistance and social norms. Meanwhile, from an economic aspect, it takes the form of loans and fixing fish prices. It can be said that the pattern of PCRs is asymmetrical. There are shifts and changes in responsibilities and risks over time. In the past, the responsibility and risk were mostly borne by the patron, but nowadays this is mostly borne by the client. This relationship pattern is worth paying attention to when formulating development policies for fisherman communities and coastal areas.