Four Generations Under One Roof (四世同堂; Sì Shì Tóng Táng) is a 1944 novel by Lao She describing the life of the Chinese people during the Japanese Occupation.

Lao She is in the creation of the novel begins in 1941, this is the Peking subjugate of the fifth year, the Anti-Japanese War entered the stage of strategic stalemate literature in the national situation, literary circle showed unity of pace and high patriotism.

The novel lasted four years, between the victory of the Anti-Japanese War and the author's invitation to go abroad to give lectures.

After returning to China, Lao She gave the manuscript of Famine to Zhou Erfu(周而复), chief editor of Shanghai Literature Magazine.

Four Generations Under One Roof takes an ordinary hutong in Beijing during the Anti-Japanese War as the specific environment for the story to unfold.

Why a great country with a splendid civilization for thousands of years was invaded by the Japanese cannot but cause deep introspection on the part of intellectuals including the author.

"[6] Kong Qingdong: "The most valuable thing about Lao She's Four Generations in the Same House is that it can present positive power in a peaceful natural state, showing the unyielding spirit of people in daily life, thus highlighting the idea that evil does not overpower good.