摘要:This paper discusses how Panglima Laot transformed into the republic from kingdom era. During the kingdom era, Panglima Laot had an important role in the maritime sector, particularly in collecting vessel excise. However, during the Dutch Colonial military penetration, Panglima Laot had adapted to the war situation. After the independence, it adapted to the different situation where kingdoms were no longer exist. This political change transformed Panglima Laot in terms of function, value and position as a form of adaptation. This study uses historical method, especially analyzing local as well as the colonial sources. It also included journal as the reference. This study shows that Panglima Laot gradually transformed based on certain phase. During the war phase, Panglima Laot transformed into the war force to face the Dutch military penetration. After the independence, Panglima Laot had to adapt once again, it transforms into a customary institution serving for the fishermen within the traditional corridor. Panglima Laot eventually becomes the maritime culture of the Kingdom of Aceh for Indonesia. The existence of Panglima Laot as a customary institution managing the coastal area is recognized by the Country in the law.