In November, I visited two museums on Hong Kong's maritime history, the Hong Kong Coastal Defense Museum and the Hong Kong Maritime Museum respectively. Although the details of their exhibition are quite similar, many differences can be found between them since the Hong Kong Coastal Defense Museum is officially organized, while the Hong Kong Maritime Museum is private. The report will compare their similarities and differences in various aspects. As for the operation of the two museums, the obvious difference is that the Hong Kong Coastal Defense Museum belongs to the government, but the Hong Kong Maritime Museum is private. For this reason, the Hong Kong Coastal Defense Museum has a large budget for daily operations and this is why it is not profitable and free. However, since the Hong Kong Maritime Museum is privately operated, it is profitable and charges visitors. Many exhibitions are also sponsored by companies and businessmen. This difference leads to contrast between purposes, structures, details, etc. of two museums which will be discussed later. Due to different management systems, the exhibition purposes in two museums are not similar. With the creation of the Hong Kong Coastal Defense Museum, the government not only wants to increase the public's understanding of local history, but also increase their sense of belonging as Chinese. For example, there is a section that in-depth illustrates the miserable life of the people of Hong Kong under Japanese occupation during World War II and how cruelly they treated us. At the end of the exhibition, a gallery illustrates the development of the People's Liberation Army (PLA) and its role in defending Hong Kong after the turnover, so that visitors can better understand the relationship between Hong Kong... half of sheet ...... message to the Hong Kong Maritime Museum. In conclusion, although the Hong Kong Coastal Defense Museum and the Hong Kong Maritime Museum also introduce the maritime history of Hong Kong and the Guangdong coast, there are some differences in their operation, details, structure and messages highlighted. The Hong Kong Coastal Defense Museum is owned by the Hong Kong government and therefore, in addition to increasing people's knowledge of local history, it aims to strengthen their sense of belonging as Chinese and patriotism through the plot designed in the show. It also places greater emphasis on the military aspect of coastal maritime history. For the Hong Kong Maritime Museum, which is a private museum and requires an entrance fee, there is no real plot behind the exhibition, but you can see that it somehow focuses more on the economic aspects of the story local maritime and coastal area of ​​Guangdong..