Based on the theory of jingluo and on the concept of“wei” therapy from the Huangdi's Internal Classic,we discussed and considered the actions,the characteristics and the therapeutic effects of the association of Scots Pine essential oil in external application on the acupuncture points in clinical.

We expound the origin and development of preventive treatment's concept in the Huangdi's Internal Classic and the Treatise on Cold-induced and Miscellaneous Diseases.We also discussed how Zhang Zhonjing transmitted his knowledge about preventive treatment from the Huangdi's Internal Classic.We explained in detail the importance and the clinical applications of treating before occurrence of disease,treating early after occurrence,preventing the propagation,avoiding critical evolution of disease and preventing the relapse when the patient is recovered.