The mechanical properties of the thick Ni foam prepared by electrodeposition technology are not homogeneous from the surface to the middle section due to the different Ni deposit thicknesses on the ligament of PU foam, resulting in a larger deposition thickness ratio (DTR). In this study, the effects of the constitution of electrolyte and the current density during electrodepositing process on the DTR of thick Ni foam were investigated. The results show that the current density has the predominant effects; and the conductivity of electrolyte and the concentration of main salt are also the important factors.