Abstract: A package structure for a high-luminance light source comprises a circuit board, at least one light source and a resin coating covering the light source. A light refractive layer is formed on a surface of the circuit board and is located correspondingly to the light source, and the light refractive layer is provided for refracting the ineffective light of the light source, so as to turn the ineffective light into effective light, so that the light emitted at different angles from the light source are fully utilized to improve the luminescent efficiency of the light source.