Abstract: This application relates to a structure for preventing soil loss in slopes of a river and a coast. In one aspect, the structure includes a body part made of concrete, a plurality of first leg parts connected to a first end of the body part and arranged on a first plane by extending therefrom in longitudinal directions of the first leg parts, and a plurality of second leg parts connected to a second end of the body part and arranged on a second plane perpendicular to the first plane by extending therefrom in longitudinal directions of the second leg parts. The structure may further include a first reinforcement part provided by protruding outward from the body part, a second reinforcement part provided on a portion of each of the first leg parts by protruding outward therefrom, and a flowing water induction part provided as a shape of a channel.