In order to solve the problems of poor surface quality,large internal stress and low tensile strength of nickel plated optic fibers obtained with nickel sulfate as the main salt,nickel aminosulfonate was used as the main salt to electroplate the chemical plated optic fibers.Surface quality and tensile strength of the Ni-coated optic fibers obtained with two different kinds of nickel plating chemicals were studied,and then compared with the Au-coated optic fibers of FiberGuide Corporation.Results show:(i) the surface of optic fibers obtained with nickel aminosulfonate as the main salt is smoother and more compact than the optic fibers obtained with nickel sulfate as the main salt;(ii) tensile strength(877.20 MPa) of the Ni-coated optic fibers obtained with nickel aminosulfonate as the main salt is 41.73% higher than that of the Ni-coated optic fibers(511.11 MPa) obtained with nickel sulfate,which is at a similar level of the Au-coated optic fibers(718.99 MPa) of Fiber Guide Corporation;(iii)the removing methods of organic protective layer of the optic fiber,such as optic plier and chemical immersion methods,may finally affect the surface quality of the coating.