Disclosed is a gabion-piled slab type debris flow retaining structure. The gabion-piled slab type debris flow retaining structure is composed of a reinforced concrete tie beam, a reinforced concrete retaining panel, reinforced concrete slide-resistant piles and gabion buffer layers, and is characterized in that the reinforced concrete slide-resistant piles are connected into a whole through the reinforced concrete tie beam and are further connected with the reinforced concrete retaining panel into a whole, and the gabion buffer layers are tightly attached to the rear portion of the reinforced concrete retaining panel. The gabion-piled slab type debris flow retaining structure has the following advantages of large dam height, high reservoir capacity, high bearing capacity and structural strength and high drainage guide capacity.