To provide an aerosol composition having lubricity, rust-prevention property and penetrability and further exhibiting high lubricity by penetrating into a small clearance of a sliding part.

The aerosol composition having lubricity, rust-prevention property and penetrability and used by spraying in the form of aerosol is produced by compounding a base oil with at least a lubricity improving agent, a rust-preventing agent and a low-boiling hydrocarbon solvent, and further contains 0.0002-0.5 mass% carbon nanoparticles having a diameter of 0.7-200 nm such as fullerene.