Heilongjiang Province has a Muling City, take it for granted that the Muling River should be here. When I saw the Muling River in Jixi City, I was very surprised. It turned out that there is also Muling River here! Muling River, the largest tributary of the Wusuli River, a tributary of Heilongjiang, is called the "Yinniu River", in Jin Dynasty called "Mao Pin River", "Muling River", Yuan Dynasty called "Moli River", Ming Dynasty called "Mai Lan River", Qing Dynasty called "Mulun River", "Muqi River", and the late Qing Dynasty was changed to Muling River. "Muling" in Manchu language has the meaning of "horse" or "grazing horse", the Muling River Basin is the ancient Bohai country horse farm, so the name. The Muling River has nourished the people on both sides of the Straits with a broad heart for thousands of years through many areas in Heilongjiang Province.