Abstract: By use of document-data method and analytical reasoning, an analysis is made of the value of consciousness of Yijin Jing in the formation and development of Yijin Jing acts and skills. It is expounded that the value of the consciousness finds expression mainly in the transition from acts to thought and from thought to act in the practice of the body-building Qigong---Yijin Jing. And accordingly, it is strongly suggested that in the practice of Yijin Jing the formation of consciousness needs to maitain a well-balanced mood and emotion with a relaxed body and calm mind and complete mental concentration free of external disturbance. By recalling to concentrate the “consciousness”, the comprehensive value in regulating the body, breath and mind is thus achieved.