To provide means for reducing in-plane thickness dispersion of a coat formed on a lens base material in manufacturing a spectacle lens.

A method for manufacturing spectacle lenses includes: applying a coat forming composition on a coating object surface of the lens base material; solidifying the composition; and forming a coat. The coating object surface is a concave surface; the coating is performed by supplying the coat forming composition from above to the concave surface that faces vertically upward; the direction of the lens base material after the coating is changed such that the concave surface faces the vertically downward; and a state where the concave surface faces vertically downward is retained till finishing the solidification process.