Before it was converted into Hong Kong Museum of Coastal Defence, it was the premises of former Lei Yue Mun Fort. The Lei Yue Mun Fort was constructed in 1885. The purpose of this fort is to defend the possible attacks from France and Russia. Therefore, Royal Engineers designed and built this redoubt on the peak of south coast of Lei Yue Mun (eastern approach to the Victoria Harbour). The first step of construction was to excavate out soil. Then the barracks and courtyards were built at this concealed space. In 19th century and early of 20th century, it was the most powerful defensive facility for protecting Victoria Habour.

In 1987, the British Force was wholly left and vacated this training camp. After a series of conservation work and decorations, it has open opening to public from 25th July, 2000.