East Java province is the one of shipbuilding industry cluster in Indonesia. Traditional fishing boats have been widely used by most fishermen in East Java. In this study, we aim to test the stability of traditional fishing boats according to the International Maritime Organization (IMO) standard. The results show that there are four types of traditional fishing boats, namely: ijon-ijon, perahu, pursein, and ethek-ethek. The stability test shows that all these types of traditional fishing boats has confirmed to the IMO standard, except the ethek-ethek boat. In order to fulfill the IMO standard, the bilge keel can be used to modify the ethek-ethek boat.

Key Words: Traditional fishing boats, stability test, IMO standard, Indonesia