Abstract: The Ni-P-carbon nanotubes (Ni-P-CNTs) composite elect roless deposit on the basis of copper foil wasprepared by means of composite elect roless plating. The optical microscope , scanning elect ronic microscope (SEM) ,microhardness tester and omnipotence tensile testing machine were used to study the Ni-P-CNTs composite elect roless plating samplespmicrost ructure and properties. The result s show that the grain size on the sample surface decreases and the hardness for composite plating increases with the increment of CNTs content in the elect roless plating solution. In addition , the maximum extensibility , the reduction of area and the crack density of the f racture sideof Ni-P-CNTs composite elect roless plating samples increase with the increment of CNTs content , while the tensilest rength , the f racture st rength and Youngps modulus decrease.