在现今北海公园的东北隅,画舫斋以北,约在北海幼儿园和儿童遊乐场一区,係清代的先蚕坛。按《大清会典》记载:蚕坛、观桑台、织室、神殿、蚕署等围垣一百六十丈,大约占地二十六亩。北京最早建蚕坛是明嘉靖九年(1530年),雲址在安定门外,后改筑于西苑仁寿宮侧。清代康熙帝曾在 In the present Beihai Park, northeast corner, north of Fangzhai vegetarian, about the North Sea kindergarten and children’s playground in a district, the Department of the Qing Dynasty’s first silkworm altar. According to the “Qing Hui Huodian” records: the silkworm altar, view Sangtai, weaving room, shrine, silkworm Department and other environs one hundred and sixty feet, about an area of ​​26 acres. The earliest silkworm building in Beijing is Ming Jiajing nine years (1530), cloud site in Andingmen, later rebuilt in Xiyuan Renshou palace side. Emperor Kangxi in Qing Dynasty was there