Electrodeposition is a powerftil technology for making thin and nano-scale elements for a variety of applications. Presently, the electrodeposition of Ni-P alloy has been attracting much interest from many industries due to its high corrosion resistance. This study presents an investigation of the process of electrodeposion of Ni-P alloy using pulsed plating with the aim of finding the influence of pulse conditions on the corrosion resistance of the deposit. Since pulsed power allows us to control the reaction rate and allows time for these reactive species to reestablish the equilibrium concentration near the substrate when the power is off Our results did show that the phosphorous content and the corrosion resistance of deposit depends on current density, duty cycle and pulse frequency of the pulsed power.