The invention relates to an interference source individual identification method based on phase noise characteristics, and belongs to the technical field of target identification. The method comprises the steps: step 1, establishing a radar active interference signal model and obtaining an active interference signal; step 2, preprocessing the active interference signal to obtain a preprocessed interference signal; step 3, performing first feature extraction and feature dimension reduction on the preprocessed interference signal to obtain a signal after first dimension reduction; step 4, performing classification identification on the signal after primary dimension reduction obtained in the step 3, and outputting an interference type; step 5, aiming at deceptive interference, extracting phase noise characteristics of the deceptive interference; step 6, performing secondary feature extraction and feature dimension reduction on the phase noise characteristics to obtain a signal after secondary dimension reduction; and step 7, performing classification identification on the signal after secondary dimension reduction obtained in the step 6, and outputting an interference source type of deceptive interference. According to the method, the phase noise features based on radiation source signal envelope have differential fine features, and the method has universality, stability, uniqueness and testability.