The invention discloses a red copper pipeline for an air conditioner, and relates to the technical field of red copper pipe manufacturing. The red copper pipeline for the air conditioner comprises a first pipeline, a second pipeline, a third pipeline and a condensate water groove, wherein the first pipeline, the second pipeline, the third pipeline and the condensate water groove are connected witheach other in sequence. The first pipeline and the third pipeline are red copper pipes, and the second pipeline is an aluminum pipe or a corrugated connecting pipe or a copper pipe. The condensate water groove is arranged along the pipelines and is an arc-shaped flexible groove. Filters are arranged in end openings of the first pipeline and the third pipeline. Vibration-absorbing devices are arranged on the circumferential sides of the first pipeline and the third pipeline. Due to the fact that the copper-aluminum combination type air conditioner pipelines are used, the usage requirement of the air conditioner pipeline is met, bending is convenient, the consumption of copper can be reduced, and the usage cost of the air conditioner is reduced. Condensate water accumulating on the pipelines flows into the condensate water groove, and therefore the phenomena that water enters parts, and corrosion happens are effectively avoided. The vibration of the pipelines is reduced through the vibration-absorbing devices, installation and fixing are convenient, cracks, caused by long-term vibration, of the pipelines are avoided, and the service life of each pipeline is prolonged.