The invention discloses a high-compression-resistance MPP solid-wall pipe and a preparation method thereof. The high-compression-resistance MPP solid-wall pipe is prepared from the following raw materials in parts by weight: 100 parts of modified polypropylene, 0.5-15 part of tackifier, 0.1-15 part of nano material, 0.1-15 part of liquid crystal material, 0.5-15 part of impact modifier, 0.1-15 part of nucleating agent, 0-30 parts of filling masterbatch, 0.5-5 part of color masterbatch, 0.5-30 part of engineering plastic. The high-compression-resistance MPP solid-wall pipe manufactured by usingthe raw materials is good in rigidity, high in bending strength, high in bending elasticity modulus, high in ring stiffness, good in impact strength and corrosion resistance, and good in long-term load resistance and compression resistance at high temperature due to good rigidity, high strength, so that the wall thickness can be reduced, the cost can be reduced, the energy can be saved, and the production efficiency can be improved. The solid-wall pipe can satisfy the requirements of high-standard quality electric power engineering.