PURPOSE: To provide a sliding material having both of a low friction coefficient by self-lubricity and wear resistance as a sliding material.

CONSTITUTION: By mechanical alloying a fine metal powder and a solid lubricant, a milling powder, wherein a solid lubricant is finely dispersed in a base metal, is produced. And then, a self-lubricating composite powder is produced by mixing powder of the base metal powder into this milling powder. After then a self-lubricant composite powder alloy is produced by a treatment of sintering, flame spraying or the like for this self-lubricating composite powder. A low friction coefficient and a high wear resistance are compatible, because of that the solid lubricant in the milling powder exhibits self-lubricity and at the same time, the base metal in the base metal powder and the milling powder exhibits wear resistance.