The invention discloses an optical glass progressive multi-focal lens as well as a manufacturing method and application thereof. The manufacturing method comprises the following steps: step 1, carrying out cold machining on a base lens; step 2, carrying out heat sinking molding and precise annealing, namely putting the lens on a grinding tool, then transferring into an electric heating furnace for heat treatment, and heating to a temperature higher than the temperature at a softening point of optical glass to ensure that the lens sinks depending on self-weight; and step 3, carrying out spherical surface machining and the like. The industrial mass production of optical glass progressive multi-focal lenses can be realized by combination of a heat sinking molding method and a traditional spherical surface machining method. In addition, the optical glass progressive multi-focal lens is low in production cost and excellent in lens quality, and can be applied to manufacturing of optical instruments.