Abstract: An LED (light-emitting diode) package structure includes a substrate, at least one LED unit disposed on the substrate for generating a light beam, and an optical correcting element disposed within a travelling path of the light beam. The optical correcting element includes a transparent body disposed on and cooperating with the substrate to define a reception chamber with an opening for access into the reception chamber and a transparent encapsulated body injected into the reception chamber via the opening for encapsulating the LED unit therewithin.