The invention discloses an LED (light-emitting diode) light source module which comprises an LED chipset and an overcurrent protection circuit module, wherein the overcurrent protection circuit module comprises a current sampling resistor, a voltage regulation triode, a bias resistor, an overcurrent control triode and a reverse overvoltage protection diode; the LED chipset comprises a plurality of LED chips which are in serial connection; and the LED chips are formed by connecting a plurality of LED lamps in series. Each constituent component of the overcurrent protection circuit module is matched with the internal structure of the LED chipset of the LED light source module provided by the invention, so that not only can the LED light source module operate stably, and the protection function is complete, but also the cost is low, and the LED light source module is wide in application and popularization value; and simultaneously, the heat radiation performance of the LED light source module is improved further by virtue of a heat radiation island arranged on the LED light source module.