The result of the investigation of near miss incident on the Marine Operation System has shown that there were many causes of these incidents in the process of work on the ship's bridge. The working process on the bridge can be classified into several types types such as watch level 1, 2 and 3. So we tried to find out the causes of near miss incident in the process of watch type through interview survey. Therefore, the analysis of near miss incidents in watch level 1, 2 and 3, which require better relationship for co-operator works and changing of watch level in early stage were concentrated.
