The Shikumen is an epitome of the great Shanghai society. In the long years, Shanghai citizens have toiled here, revolutionaries have worked here in secret, literati, scholars, artists have nurtured their works here. In the old days, there were factories, banks, hotels, warehouses, newspapers, schools and so on in Shikumen. It can be said that there are everything and everything. The "pavilions", "guest rooms", "wing rooms", "patio", "principal landlord", "white people sister-in-law", "seventy-two tenants" and other terms related to Shikumen have become the warm memories of old Shanghai residents. In wong kar-wai's "in the mood for love", shikumen in old Shanghai, Maggie cheongsam, and Tony leung chiu-wai's depressed look together, spread out into a beautiful nostalgic film, a love story worth aftertaste. Shikumen is the symbol of Shanghai's modern civilization. Missing Shikumen is the nostalgia for the familiar but fading way of life. It is like a mirror, reflecting the life of Shanghai people and the changes of time. More and more people are exploring Shanghai's century-old history as a seeker or a nostalgic. The historical relics scattered in the streets and alleys and all kinds of gentle and wild history of old Shanghai immediately become the city's most vibrant and memorable cultural treasures.