In this paper, taking the medical dendrobium candidum as the research subject and by means of chemical oscillation and calorimetry, the variations and the influence of pH on the period, lifetime of oscillation were discussed by simulating body temperature, thus obtaining oscillating fingerprints which can reflect the characteristics of Chinese medicinal herbs, half-life, ∆ sol S m , ∆ sol G m , ∆ sol H m . The current study provides theoretic basis for the clinical application of dendrobium candidum.