The invention particularly relates to a household air conditioner outdoor unit vibration damping pipeline which comprises vibration damping rubber feet, a high-pressure tube, a vibration damping corrugated hose, a four-way valve, a low-pressure tube A and a low-pressure tube B, wherein the vibration damping rubber feet are positioned at the lower part of a compressor; the low-pressure tube B is connected with an air return opening of the compressor; the vibration damping corrugated hose is positioned between the low-pressure tube B and the low-pressure tube A; and the low-pressure tube A is connected with four-way valve. According to the household air conditioner outdoor unit vibration damping pipeline, the pipeline vibration caused by operation of the air conditioner compressor can be effectively eliminated, the problems of vibration of a household air conditioner outdoor unit box, abnormal sound of the household air conditioner outdoor unit, fracture of high-pressure and low-pressure tubes of the compressor, and the like, due to the pipeline vibration are avoided, and the operation stability and reliability of the entire air conditioner are improved.