This research aims to describe sustainable technology in marine fisheries in Cilacap Regency, which consists of type of capture equipment, type of fish, type of production and processed products, number of fishermen, and number of vessels. One of the marine fishery support facilities in Cilacap Regency is Cilacap sea fishing port. This port is one of the fishing ports located on the south coast of Java. In order to improve marine products, some efforts are made regarding ship machining, fishing equipment, and fishing aids. In the field of fishing equipment in the development of many environmentally friendly modifications. This method of study is a qualitative descriptive of case study. The data sources used are informants and documents. The results showed with the ongoing technology that 1) there are seven types of sea capture equipment, 2) There are five types of production processing and processed fishery products, 3) There are 5,626 fishermen, and 4) there are 646 vessels based on the size of the vessel and the capture equipment.