The invention belongs to the super capacitor technology field and especially relates to a fibrous super capacitor possessing a high output voltage and a manufacturing method thereof. In the invention, on a tensible fiber whose surface is winded with an orientation carbon nanotube film, through a structure design of a common electrode, effective series connection of a super capacitor can be realized on a single fiber. Through regulating and controlling super capacitor unit numbers, different output voltages can be acquired and a highest voltage can reach 1000V. Performance of the super capacitor is stable. The capacitor is stretched for 100000 times under a 50% strain, a capacity maintains to be 95.6% of an initial value. The capacitor is bended for 100000 times under a radius of curvature, a capacity can maintain to be 96.6% of the initial value. The capacitor is charged and discharged in a circulation state under a 2A/g current density for 100000 times, a capacity can still maintain to be 83.6% of the initial value. Cost of the fibrous super capacitor is low and the capacitor can be manufactured continuously. Good flexibility, stretchability and high integration performance are possessed. And the capacitor has a wide application prospect in the wearable and micro-electronic device field.