The invention belongs to the technical field of aviation, and relates to a high-temperature pipeline vibration isolator on a plane for cutting off the transmission of vibration force of airplane equipment in a high-temperature bleed air pipeline. The high-temperature pipeline vibration isolator adopts a vibration isolation combinational design, and consists of three vibration isolation mechanisms. The high-temperature pipeline vibration isolator has a large angular displacement and high vibration isolation performance, endures high temperature corrosion, is not influenced by temperature changes, has high sealability, cannot age or creep, has a long service life, and has small characteristic changes during mass production.