The utility model discloses an inland river ecological improvement spur dike group. Wherein the diversion spur dike and the bank protection short spur dikes are sequentially arranged from upstream todownstream, the water retaining spur dikes correspond to the bank protection short spur dikes in a one-to-one mode, one end of the diversion spur dike is connected with a river bank, the other end ofthe diversion spur dike extends into a river channel and forms a certain angle with the river bank, and a dike head points to downstream; the water retaining spur dike is arranged offshore, located inthe middle of a navigation channel and integrally in a U shape, a U-shaped opening points to the downstream, the water retaining spur dike is composed of an arc-shaped dike head and two sections of linear dike bodies, the dike body close to the mainstream side is arranged in the mainstream flow direction, and the dike body close to the shore side is parallel to a river bank. The bank protection short spur dike is connected with a river bank on a plane to form a T shape; the water retaining spur dikes and the corresponding bank protection short spur dikes are arranged in an opposite spur dikemode, and water passing branches are formed between the water retaining spur dikes and the corresponding bank protection short spur dikes. According to the utility model, the navigation requirement can be met, the flood capacity of a navigation channel is improved, and a good habitat environment can be created for animals and plants.