The invention discloses a high-strength low-extension anti-bending-fatigue sailboat rope and a manufacturing method thereof. The sailboat rope comprises a woven rope core and a rope skin wrapping therope core, and the rope core is made from high-strength fibers; the rope skin is woven from multiple rope strands composed of multiple high-strength fibers through twisting; the rope core component orthe whole rope is subjected to tension thermal-setting treatment. On the premise of ensuring sufficient fullness and flexibility of a sailboat rope body, higher breaking strength and lower loading extension rate are achieved, and the anti-bending-fatigue performance of the sailboat rope is significantly improved.