The fisherman community of Arungkeke village, Arungkeke district, Jeneponto regence, can be devided in two gropus, traditional fisherman using traditional catching equipment and modern fishermen using modern catching equipment. Due to the decreasing fish resources has prompted traditional fishermen to work as mere labours in catching-fish boats. When many fishermen have to sell their boats or change the boat fuction as timber carrier in the years of 2000, many fishing laborers back to their prevous job as traditional fishermen even in Arungkeke water pool has been suffering from decreasing fish resources. Since they had lived in difficult condition their lives changed since 2006. Many fishermen have double occupation, as fishermen and seagrash cultivators. Patron and client (labors) then are dependable equally. The majority of fishermen feel they are able to exploit sea potential resources, especially since mutual cooperation working relation system had been applied. The research that based on qualitative-descriptive method finds that mutual cooperative working relation system have a strong effect on the ability of Arungkeke fishermen community to optimize see resources. It can be concluded that in the sea water zone of Arungkeke village the limit of sea resources can be resolved with mutual cooperative working system among fishermen. It is recommended that local government should prompt every fishermen community to apply mutual cooperative working system in optimizing limited sea fish resources to insure fishermen living continutity