With the quartz fiber as the matrix materials, the copper-plating quartz optical fiber is produced by electroless nickel-plating and copper electroplating. The influences of pretreatment roughening time activation time, activation temperature on bond strength and continuity of nickel-phosphorus alloy coatings are studied with colloidal palladium activation. The results indicate that only in which condition at the room temperature, roughening time is 2-10 min, activation temperature is 30-40 ℃, activation time is 20 min, the continuous, dense, uniform, bright and highly cohesive nickel-plated underlying on the surface of the quartz fiber can be prepared successfully. Copper-plating optical fiber with high adhesion, low resistivity and good welding can be obtained by electroplating copper on the electroless Nickel-plating quartz optical fiber. By testing the temperature sensing performance of the copper electroplating optical fiber, it is found that the temperature sensitivity coefficient of the copper electroplating optical fiber is 1.7 times than that of ordinary optical fiber, that is, enhanced sensitivity effect of temperature is obvious.