Bianyifang (便宜坊) is famous for its delicious Peking roast duck in Beijing, and many native Beijingers prefer it.

Established in 1416, the original Bianyifang used to be a small workshop, which produced duck and chicken dishes in Mishi hutong (米市胡同), Caishikou, Beijing. In 1827, its owner Sun Zijiu (孙子久) began to expand the business and established a larger restaurant, where Peking Roast Duck and Spanish and French Style Duck Liver (西法鸭肝) are its "signature dishes".

Due to the fame of the original Bianyifang, many restaurants named themselves "Bianyifang", among which, Xianyukou Bianyifang (鲜鱼口便宜坊) is the one that exists today.

In 1855, Xianyukou Bianyifang was established in Qianmen, Beijing by the Wang family, who hired a chef from the original Bianyifang. The restaurant has carried the Beijing cuisine tradition from the Qing dynasty to its modern day form.

Bianyifang's main competitor has been Quanjude, another restaurant specializing in Peking Roast Duck.