A personalized customized orthopaedic insole is provided, comprises an arch support, a heel cup, a decompression hole and a patch, wherein the heel cup is positioned behind the arch support, the decompression hole is positioned on the arch support, the decompression hole corresponds to the position of the affected part, the patch is positioned above the arch support and the heel cup, and furthermore, the decompression hole is of circular or elliptical structure. According to the foot scanning model and plantar pressure distribution of different people, the orthopaedic insole was designed and made, Through 3D printing technology, it can compensate the shortening of lower limbs or foot defects, correct abnormal walking posture, alleviate foot pain, maintain foot stability, adjust foot biomechanics to return to normal standard state, and realize the treatment of high efficiency, fast, scientific, digital and personalized.