The purpose of this study was to determine the effect of ethics, motivation and behavior of the KRI crew with conservation status on the performance of soldiers in the ranks of Koarmada II. This type of research uses descriptive quantitative and then analyzed with validity and reliability tests, classical assumption tests and multiple linear regression. Data were obtained by giving questionnaires to 58 KRI crew members with conservation status as respondents. The results of the analysis prove that there is an influence between the ethics and motivation of the KRI ABK with conservation status on the performance of soldiers in the ranks of Koarmada II. The behavior variable has no influence on the performance of soldiers. Simultaneously, ethics, motivation and behavior influence the performance of soldiers in the ranks of Koarmada II. The results of this study have implications for the ethics, motivation and behavior of KRI crew members with conservation status that need to be improved in order to improve the performance of soldiers in the ranks of Koarmada II.