The invention relates to a diversion ecological spur dike which is a dike-shaped construction with one end connected with a river bank and the other end extending to a river channel, and the diversion ecology spur dike and the river bank form a T shape on a plane. The dike is characterized in that a plurality of layers of diversion plates are arranged at the periphery of the lower part of a dike body, the diversion plates are rigid plates, one side of each diversion plate is fixed on a spur dike body, and two vertical side edges of each diversion plate are connected with side edges of other diversion plates at two sides. Compared with the common spur dike, the diversion ecological spur dike disclosed by the invention has an ecological effect, high stability and the same regulation effect.The diversion plates are beneficial to the attachment and the survival of various water-based creatures, low turbulent fluctuation zones among the diversion plates are beneficial to the retention andthe attachment of the water-based creatures, strong turbulent fluctuation zones provide spaces for fishes to play with water, so that the needs of various biological natures can be met, and the ecological effect is remarkable. The maximum scouring depth and the scouring pit range of a dike head of the dike can be reduced to certain extent, a scouring pit has the tendency of moving facing downstream, and being far away from the direction of the dike head, so that the diversion ecological spur dike is beneficial to the stability of the dike body.