Brake pad capable of dissipating heat from a caliper seat by the flowing fluid along a downwardly curved impact path

A brake pad is mainly composed of a main body and a heat sink. The main body has an inner surface, and an outer surface and a heat dissipation surface facing away from the inner surface. The heat sink is formed by extending obliquely outward from the outer surface, and has a leading edge and a trailing edge intersecting with peripheries of an upper surface and a lower surface. A free space is provided in a hollow between the heat dissipation surface and the upper surface. When the air flows into the heat sink from the leading edge, the leading edge is used to separate the air into a partial fluid and a fluid. The partial fluid can enter the free space to dissipate heat from the heat dissipation surface and the upper surface, and the fluid acts directly on the lower surface to dissipate heat while the fluid flows along a downwardly curved impact path.