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The Yellow River Delta is located in the northeast of Shandong Province, with a total area of 5,400 square kilometers, mainly in Dongying City.

The Yellow River Delta, with Ninghai in Kenli County as the axis, starts from the mouth of Taoer River in the north, reaches the mouth of Zimai River in the south and spreads eastward. Its elevation is below 15m, and its area is 5450km2, which is the youngest land in China. Modern Yellow River Delta is an alluvial fan formed by Yellow River alluvial action since 1855.

The Yellow River Delta Nature Reserve is only 60 kilometers away from Dongying City, which belongs to temperate monsoon continental climate, with four distinct seasons, abundant sunshine and the same period of rain and heat, with an average annual precipitation of 5565438 0.6 mm. This delta is a marine sedimentary plain filled with a large amount of sediment by the Yellow River in Bohai Depression. The landform of the modern Yellow River Delta includes floodplain highlands, sloping fields and large depressions. The newly formed swing tail land zone of the Yellow River is wide and low-lying, with its area expanding year by year and unique ecological type. A large area of shallow sea beaches and wetlands has been formed at the intersection of Haihe River, which has become an important "transit station" and wintering breeding ground in the inland of Northeast Asia and bird migration around the western Pacific Ocean. This area is rich in aquatic biological resources. According to preliminary investigation, there are more than 800 species, among which amphioxus, finless porpoise and Songjiang perch are under national key protection. There are hundreds of kinds of wild plants, and the endangered plant wild soybean under state protection is widely distributed. There are about 187 species of birds, and 108 species are included in the Sino-Japanese migratory bird protection agreement, among which red-crowned crane, white stork, golden eagle, great bustard, swan, cygnet, crane and bee are the national key protected wild animals.

The Yellow River Delta is the youngest land in China and even in the world. The great Yellow River created it with the power of moving mountains and filling the sea, endowed it with new, strange, wild and vast natural beauty, and formed a unique natural landscape in the Yellow River Delta.

The Yellow River Delta is high in the southwest and low in the northeast, which is consistent with the direction of the Yellow River entering the sea. Due to the influence of the tail swing of the Yellow River, many abandoned rivers and waterproof dams are formed on the ground here. Despite years of wind and rain erosion and artificial leveling, hills, slopes, depressions and undulating landforms can still be seen. A large amount of sediment brought by the Yellow River makes the delta advance to the Bohai Sea at an average speed of 2 ~ 3 kilometers per year, forming a large area of new land.

The coastal beaches in the Yellow River Delta are broad and flat, mostly sandy and muddy. It is an important shrimp producing area, seafood base and sea salt base, and is known as the "hometown of hundreds of fish". Yellow River carp, yellow river swordfish, whitebait and shrimp are all unique specialties.

The ecological environment of the Yellow River Delta is fragile, and a national nature reserve of 1530 square kilometers has been established here, with the protection of wetland ecosystems and rare and endangered birds as the main body. There are the youngest estuarine wetlands in the world and a large area of coastal wetlands in a relatively primitive state, with unique habitats and rich species. There are 393 species of wild plants and 265 species of birds. In a large area of wetlands and swamps, there are only 5 1 species of rare and protected birds, including 7 species of national first-class protected birds, such as storks, golden eagles and red-crowned cranes. Among ordinary birds, herons and snipes are the most common wading birds. There are rare marine animals such as seals, finless porpoises, amphioxus, Chinese sturgeon, Songjiang bass, leatherback turtles and fin whales in the offshore waters.