According to IMO, international trade 90% depends on seaborne trade. As demands continue to arise, ship’s size continues to increase simultaneously. As loading unloading occurs in port, safety issue regarding ship’s berthing is matters. This study aims to propose a process developing of safety factors in ship’s berthing, which might induce to an allision between ships and cranes. There are several risk factors such technical skills, communication issue, organizational gaps, port layout and facilities, and navigation. The identified risk events are ship’s maneuverability failure, ship’s machinery failure, and ship navigation failure, Meanwhile, the are six identified risk agents, there are lack of pilot competencies, insufficient tugboat power, climate condition, lack of competencies from crew on board, bad berthing procedures given by harbour master, and communication issue between port officer, boatmen, and tugboat pilots.