The invention provides a perpendicular soft auxiliary transportation system for a high-rise building. The perpendicular soft auxiliary transportation system comprises a hoisting mechanism, a lifting mechanism, an anti-oscillation mechanism and a supporting mechanism. The hoisting mechanism comprises a lifting cross beam, a winch, a lifting rope and a pulley block. The lifting mechanism comprises a basket, an anti-falling device and a transportation channel. The basket is provided with anti-oscillation guide grooves. The anti-falling device comprises anti-falling lifting ropes and anti-falling rope clamping devices. The anti-oscillation mechanism comprises anti-oscillation ropes vertically penetrating through the anti-oscillation guide grooves. The lifting rope is wound on the winch and passes through the pulley block to be connected with the basket which rises or falls along the anti-oscillation ropes under the effect of the winch. By adoption of the perpendicular soft auxiliary transportation system, under the condition that the safety of loading and unloading personnel is ensured, the difficulty of serious perpendicular transportation of the high-rise building is effectively solved, the perpendicular transportation efficiency is improved, high-rise effect reduction of building construction is reduced, the construction cost is effectively lowered, the construction efficiency is improved, all-weather operation can be conducted, and environment and weather influence is avoided.