Shuhe River is located in the south of Shandong Province and the north of Jiangsu Province in China. Originated in the southern foot of Yishan, Yishui County, Yimeng Mountain Area, Shandong Province. It flows south in parallel with Yishui, passing through Tancheng County and entering Jiangsu Province. At first, it flows into Surabaya in Suqian City and then into Huaihe River. During the period of 1 128 ~ 1855, the south flow of the Yellow River migrated into the sea from Sishui River below Xuzhou City and Huaihe River below Huaiyin City. Later, due to the high siltation of the riverbed, the Yellow River moved northward at 1855, leaving the abandoned old course of the Yellow River, and the Shuhe River lost its channel into the Huaihe River.
The basic flow direction of the Shuhe River in Juxian County is north-south, but after flowing out of Juxian County, the section flowing through Linyi and only in lanshan district City gradually turns east-west. In fact, it is generally north-south, and finally enters Jiangsu from Tancheng, Linyi, and finally pours into the Yellow Sea.