Autonomous nerve fatigue evaluation device, evaluation method and system

The invention discloses an autonomic nerve fatigue evaluation device, evaluation method and system. The autonomic nerve fatigue evaluation device comprises an input device, a biological characteristic information acquisition device, a biological characteristic information analysis device, an evaluation device and an output device; and the autonomic nerve evaluation device acquires an evaluation target, and calculates a deviation value of the autonomic nerve activity amount of a subject from the acquired age, LF value, HF value, and heart rate data of the subject on the basis of autonomic nerve activity amount distribution data stored in a storage unit of the autonomic nerve evaluation device. The autonomic nerve function state of the subject is evaluated by the deviation value of the autonomic nerve activity amount, and the evaluation result is output and evaluated. The method is not influenced by subjective factors of subjects, does not depend on subjective reports of the subjects, is simple and easy to impl