Internal combustion engine cylinder liner, includes open intake pipe and exhaust pipe of the cylinder liner, set within the cylinder liner is connected to the crankshaft connecting rod of the cylinder piston and inner surface of cylinder liner is set with a 2.5 ~ 5 mm thick layer of inorganic non-metallic silicon nitride ceramic coating.

Set of inorganic non-metallic silicon nitride ceramic coating not only improves the cylinder liner wear resistance, corrosion resistance, high temperature resistance, and its high hardness, good thermal shock resistance.