Nickel phosphate (NiPh) nanoparticles were synthesized using reflux-based method. XRD pattern and FTIR spectrum suggests Ni3(PO4)2.8H2O phase. It has monoclinic crystallographic form and it was casted on glassy carbon (GC). GC/NiPh demonstrates electrocatalytic activity toward urea oxidation in 0.5 M KOH.