The invention discloses a rock cutting slope flat plate type pressure dispersion anchor rope wall retaining structure. The structure comprises a one-grade or multi-grade slope body; multiple pressure dispersion anchor ropes are inserted in the slope body; a reinforced concrete flat plate is paved on the surface of the slope body; and one parts, projected on the surface of the reinforced concrete flat plate, of the end parts of the pressure dispersion anchor ropes are closed through concrete to form concrete closed anchor heads. The reinforced concrete flat plate is combined with the pressure dispersion anchor ropes for retaining protection of rock cutting slope walls; and the structure is simple in structure, convenient in construction and excellent in integrity, saves occupied lands, is beautiful in shape, achieves a certain flexibility, can guarantees common coordinated stress of a rock cutting slope and stability and safety of the slope, and can be widely popularized in such cutting slope engineering construction as railways and highways.