A surgical suture is provided, which includes a hollow cone and a thread. The cone has a front opening and a rear opening at two opposite ends thereof, wherein a diameter of the front opening is smaller than a diameter of the rear opening. The thread passes through the cone, and integrally includes at least two protrusions thereon, which are separated from each other by a certain distance. Each of the protrusions has a width in a radial direction of the thread, wherein the width is greater than a diameter of the thread, and is smaller than the diameter of the rear opening whereby, with the integrally provided protrusions, the cones can be located on the corresponding positions of the thread.