An LED illuminator module with high heat-dissipating efficiency and manufacturing method therefor is provided. The LED illuminator module includes a flat heat pipe (FHP) formed with a flat surface, an insulated layer formed on the plane of the flat heat pipe, a conducting layer having a pair of conducting electrode portions, a plurality of LEDs, and an encapsulation covers the LEDs. The insulation layer has a pair of insulated electrode portions and a plurality of LED-setting portions. The conducting electrode portions partially covered on the insulated electrode portions. The LEDs are disposed on the LED-setting portions and electrically connect to the pair of conducting electrode portions respectively. The encapsulation contains phosphor powder therein. The present invention solves the heat-dissipating problem of high-efficiency light module with the LEDs, and shorten heat-conductive path to enhance heat-dissipating efficiency.