The Museum of the War of Chinese People's Resistance Against Japanese Aggression (simplified Chinese: 中国人民抗日战争纪念馆; traditional Chinese: 中國人民抗日戰爭紀念館; pinyin: zhōng guó rén mín kàng rì zhàn zhēng jì niàn guǎn) is a museum and memorial hall in Beijing. It is the most comprehensive museum in China about Sino-Japanese War.

The museum is located inside the Wanping Fortress near the Lu Gou Bridge (Marco Polo Bridge) in Beijing's Fengtai District, where the Japanese army waged the invading war. It was opened on the 50th anniversary of the outbreak of Second Sino-Japanese War on 7 July 1987.

Since its opening up in 1987, it has undergone three major and several smaller renovation in terms of the exhibits, the biggest of which was finished in 2005. A significant number of highly technological and scientific facilities have added gradually, such as multimedia displays and video players. The museum both aims at domestic and foreign visitors and has had several exhibitions outside China over the years.