Cangzhou is a prefecture-level city under the jurisdiction of Hebei Province, located in the Heilonggang River Basin in the southeast of Hebei Province and the east of Hebei Plain, with the latitude of 37 29 ′ ~ 38 57 ′ north and the longitude of115 42 ′ ~17 50 ′ east. It is bordered by Bohai Sea in the east, Tianjin and Langfang in the north, Baoding and Hengshui in the west and southwest, and Binzhou and Dezhou in Shandong Province across Zhang Weixin in the south.