The invention provides an inclined overhanging type supporting and retaining structure which comprises at least two overhanging piles which are partially buried in a
canyon slope surface and are arranged at intervals in the length direction of the
canyon slope surface, the overhanging piles are arranged upwards in an inclined mode relative to the horizontal plane, a soil retaining plate (bearing plate) is arranged on every two adjacent overhanging piles, and the area between each soil retaining plate and the
canyon slope surface is a fill area. The fill area is of a
solid structure or a spacedsupporting
column structure. According to the supporting structure, the
terrain characteristics of a steep canyon are fully utilized, the overhanging piles are obliquely and upwards arranged on the slope surface of the canyon relative to the horizontal plane to form an overhanging structure, the section size and the length of the overhanging piles can be effectively reduced, and the constructioncost is reduced; the problems that under the steep canyon
terrain condition, filling is difficult, the size of a retaining structure is large, the retaining height is limited, and the occupied area islarge can be effectively solved. Meanwhile, the riverway can be effectively prevented from being invaded along the riverway section, and the risk of
underwater construction is avoided.