Abstract: Beijing-Tianjin-Hebei Night Fair was first seen in Tang Dynasty.In Tang and Song Dynasties,the majority of night fair was distributed in Hebei Province with a single form.After Yuan,Ming and Qing Dynasties,Beijing-Tianjin Night Fair emerged all of a sudden and its shape and scale were better than the night fairs in northern regions in the same period.Distribution,shape and scale of night fairs in Beijing,Tianjin and Hebei are obviously different,so they are reflecting the general trend of social economy and urban development in the traditional society of Beijing,Tianjin and Hebei region.Location factors such as political power and status of a city,urban development and transformation and the level of commodity economic development have become important forces influencing the economic growth trajectory of regional night fairs.

Key words: night fair economy, spatial and temporal distribution, night fair form, location advantage, Beijing-Tianjin-Hebei