The maritime FBB station is mainly responsible for the data transmission and emergency communication of ships. To solve the problem that the ship-borne maritime FBB station is unable to track target maritime satellite after system booting, detailed troubleshooting steps are illuminated after introducing the components and working principle of FBB station. After analyzing the system self-checking report and booting sequence, output signals of each modules of FBB antenna are measured and analyzed, and the breakdown chip of antenna is located finally. By comparing with the historical data, effects on FBB antenna of external factors such as working environment, vibration and shelters are analyzed, and methods to prevent system failures such as temperature and humidity control, anti-oxidation treatment are introduced. Preventive maintenance methods such as developing maritime FBB station surveillance software is proposed, which is very valuable for analysis and troubleshooting on the same type of equipment.