A light-emitting diode light source module includes a light-emitting diode and an optical lens which faces the light-emitting diode. The optical lens includes a light-emitting surface, a light-extracting surface opposite to the light-emitting surface, and a side surface interconnecting the light-emitting surface and the light-extracting surface. The light-emitting surface includes a first light-emitting portion and a second light-emitting portion. The light-extracting surface includes a first light-extracting portion and a second light-extracting portion surrounding the first light-extracting portion. An angle between the first light-emitting portion and the second light-emitting portion is an obtuse angle. An angle between the second light-emitting portion and the side surface is an acute angle. An angle between the side surface and second light-extracting portion is an acute angle.