A light emitting device includes: an element mounting board having a base and conductive patterns disposed on a main surface of the base, and each having one or more element mounting areas and one or more external connection areas; conductive patterns each having first and second conductive layers which is made of a different material from that of the first conductive layer, and disposed in this order starting from the base side; element mounting areas, on which the light emitting elements are mounted, having the first conductive layer that is not covered by the second conductive layer; external connection areas having the first conductive layer in which an outer edge is exposed from the second conductive layer; a light reflecting component integrally covers the element mounting areas and lateral surfaces of the light emitting elements; and a light-transmissive component exposing the external connection areas.