The explosion site in Yanjiao, Hebei Province is the intersection of Yingbin Road and Xueyuan Street. At 7: 54 on March 3, 2124, a restaurant in an old community in Xiaozhanggezhuang Village, Yanjiao, sanhe city, Langfang City, Hebei Province exploded. The location of the explosion is a four-story building located at the intersection of Yingbin Road and Xueyuan Street. It is adjacent to the Culture Building and sanhe city No.6 Primary School in the west, and Yanjiao Park is across the road. It is a bustling area in the town and a must for many parents to send their children to school. Yanjiao Town, which belongs to sanhe city, Langfang City, Hebei Province, is located in the west of sanhe city, bordering Dachang Hui Autonomous County in the east, southeast and south, facing the Chaobai River in the west and Tongzhou District in Beijing across the river, and neighboring Gaolou Town in the northwest and north.