A multi-layer slide member has a back metal layer mainly composed of a steel plate and a porous layer having a metallic porous member and a resin composition filled in the metallic porous member. The metallic porous member has granular portions and narrow portions and includes a structure, in which the granular portions are connected with each other through the narrow portion. Parts or the entirety of the narrow portions have a Bi phase and a Sn—Ni—Cu intermetallic compound phase.