The technical field of this invention relates to an Al-based bearing alloy and a slide bearing that uses the Al-based bearing alloy. The technical problem of the invention is to provide an Al-based bearing alloy that exhibits high corrosion resistance and in which high strength is maintained for a long period of time even in a high temperature environment, as well as a slide bearing that uses the Al-based bearing alloy. As means for solving the problem, an Al-based bearing alloy (10) includes an Al matrix (11), and acicular compounds (12) which are needle-shaped that precipitate at a plurality of sites in a structure of the Al matrix, and that have a minor diameter and a major diameter.