"Beiping Under the Shade of Sophora Trees" is a century-old epic written from a female perspective. Through the complete life trajectory of the protagonist Lin Wenyin (1912-2022) from birth to death, the story reflects the great changes in the ancient capital of Beijing from the "afterglow of the empire" to the "City of Double Olympics". The story begins in the courtyard of a family of declining bannermen in the early years of the Republic of China. The old locust tree in the courtyard is the emotional sustenance and memory coordinate of Wen Yin's life. She experienced the awakening from a boudoir girl to a new-style student, stuck to love and family in the years of war, experienced hardships and tears in the red wave, and welcomed new life and changes in the spring breeze of reform. Finally, she witnessed the continuation of the family and the rise of the country in the cycle of the century. This is not only a person's life history, but also a grand narrative about love, loss, perseverance and inheritance, woven together by the tenacity of women, the joys and sorrows of family, and the memory of the city.