A light source module includes at least one light source, and a body supporting the light source. The body includes a heat sink supporting the light source on a top surface thereof, the heat sink absorbing heat from the light source and dissipating the heat to the outside, an insulating layer provided on at least one surface of the heat sink, the insulating layer having electrical insulating properties, and a conductive layer provided on the insulating layer. The conductive layer includes connection regions through which electric current is supplied to the light source, and a light source region disposed between the connection regions, the light source region having the light source mounted therein. A protective layer is stacked in the connection region. Accordingly, it is possible to obtain effects such as rapid fabrication processes, inexpensive fabrication cost, facilitation of mass production, improvement of product yield, protection of a conductive material, improvement of the lifespan of products, and enhancement of the stability of products.