The building in the Yu Garden, the five-open hall, "Dianchuntang", is famous from Su Shi's verse "Cuidianchunyan". There is a small stage in front of the hall, three facing the water, and the east of the hall has rockery. The carved beams and painting buildings in the hall are exquisite, simple and spacious. There are the huge "sword map" written by Ren Bonian, the painter of the late Qing Dynasty, and the calligrapher Shen Yummer, "the bold ink bag empty, the heart source left the essence", and praised the mai's spirit and noble spirit of the knife will rebel. In addition, the hall also displays cultural relics such as weapons used by the Shanghai knife club insurgents and self-casting currency, sun and moon money, and published notices.