1941年12月25日至1945年8月15日這三年零八個月，是香港被日軍統治的黑暗時期。對當時的香港居民來說，這可算是人生中最悲慘的歲月。 當年日軍在香港實行軍政，是為了達到令香港人絕對服從日軍統治的目的。為了將日本的侵略戰爭合理化，日軍向亞洲各國打出「大東亞共榮圈」的口號，並且將日本文化移植到各佔領地，實行「皇民化」政策，藉此宣揚軍國日本的優越性及其軍國主義，並以洗腦的方式企圖使各佔領地的人民歸順日本，並支持其「大東亞共榮圈建設」的侵略目標。 本論文首先論述日軍侵佔香港的目的，再透過當時所發行的《華僑日報》作為本論文的主要資料，來探究當時日軍如何將日本文化浸透到香港各階層。最後考察香港人對於日軍統治有如何的反應，且於戰後，有什麼日本文化被去除，又有什麼日本文化仍遺留在香港。 During the three years and eight months of Japanese occupation, from December 25, 1941 through August 15, 1945, it was so called the “Dark Age” in Hong Kong and can be regarded as the most tragic period of Hong Kong residents. The Japan military force governed the Hong Kong to the extent that all the people must absolutely obey the rules set the Japanese. In order to rationalize the invasion, Japan propagandized the slogan “Greatest East Asia Co-Prosperity Sphere” as well as, transplanted the Japanese culture to Asia countries. They implemented the “Japanization” policy to outstanding the superiority of their culture and militarism. They also attempted to brain-wash the people asking them to pledge allegiance to their Emperor and obey the aggressive goal of “Greater East Asia Co-Prosperity Sphere”. This thesis firstly reveals the attempt of Japan’s invasion. Secondly explores how Japanese culture penetrated into Hong Kong based on the issue of “Wah Kiu Yat Po”. Lastly examines what was the reaction of Hong Kong residents when ruled by Japanese, how Japanese culture faded and retained after World War II.