The invention relates to a light source module. The objective of the invention is to provide the light source module which is capable of inhibiting strain generated in a connection part with a pin terminal. The light source module (30) provided by one embodiment of the invention comprises a heat dissipation part (32); a light emitting part (33) comprising a light emitting part main body (33A) which is configured to an opening side on one side of a through hole (32H) penetrating through the heat dissipation part (32), and a pin terminal (33B) which is connected with the light emitting part mainbody (33A) and penetrates through the through hole (32H); and a connector (34) which is configured to the opening side of the other side of the through hole (32H). The connector (34) comprises an elastic terminal sheet (41) which is connected with the pin terminal (33B) in a way of clamping the pin terminal (33B) which protrudes from the opening in the other side of the through hole (32H).