Herein, we report the arc plasma synthesis of the Gadolinium hexaboride (GdB6) nanoparticles and its field emission (FE) investigations on tungsten point substrates (GdB6/W). The GdB6 nanoparticles on W point substrate exhibit irregular shaped grainy, dense, course morphology uniformly covering the entire tip substrate surface. Furthermore, the values of the turn-on and threshold field, defined as field required to draw an emission current density ~1mA/cm2 and ~10 mA/cm2, respectively are found to be ~ 2.2 and ~2.7 V/µm, for anode-cathode separation of ~1mm. Interestingly, a very high emission current density of ~3.5 A/cm2 has been drawn from the GdB6 nanoparticle emitter at relatively lower applied electric field of ~6.4 V/µm. The field enhancement factor, (β), is estimated to be ~10,250. The GdB6/W point electron source exhibits a good emission current stability at ~10 mA more than a period of 6 hr. The current stability is enumerated in terms of standard deviation and its magnitude has been measured to be only 1.72 % with respect to the average value.