The invention discloses a self-stabilizing fish-scale pit ecological retaining wall, which includes retaining wall units. An up-down penetrating hollow cavity is formed in the middle of each retainingwall unit, each cavity internally sleeves an ecological replacement box for planting plants, each ecological replacement box is internally laid with concrete feeding nutrients for the plants, lockingprotrusions are arranged symmetrically on the two side walls of the bottom face of the front part of each retaining wall unit, locking grooves are formed symmetrically in the two side walls of the top face of the middle of each retaining wall unit, and the locking protrusions are matched with the locking grooves. The retaining wall units are arranged one by one in a fish-scale pattern to form theecological retaining wall, the upper and lower adjacent retaining wall units are interleaved, and the locking protrusions of the retaining wall unit on the upper layer extend into the locking groovesof the retaining wall unit on the lower layer to form limiting connection. Compared with the prior art, according to the self-stabilizing fish-scale pit ecological retaining wall, the advantages of good self-stability, easy construction, no need for large mechanical equipment, corrosion resistance and good greening effect are achieved, the biodiversity is well met, a water-friendly viewing platform can be provided for residents, a self-saving way out can also be provided for water-falling people, and the water ecological function of ecological slope protection is achieved.