Abstract: Air temperature on the Southeast slope of Mt. Huang gang was measured from November 2001 to November 2002 at 15-minute intervals, using 7 sets of HOBO onset micro climatic recorders. The results showed that annual mean temperature had a significant linear relationship with altitudinal gradient with a lapserate of 0.43℃/100 m, and that the monthly lapse rates differed seasonally, with low values in winter and high values in summer. The lowest lapse rate was recorded in December (0.26℃/100 m), and the highest in September (0.56℃/100 m). Mean maximum temperature showed a low value at the middle elevations, while mean min-imum temperature showed a strongly linear relat ionship with elevation (0. 54℃/100 m). There was no obvious difference for absolute hight emperature at the varying elevat ions. The diurnal range of temperature indicated a U-shaped pattern along the altitudinal gradient, with a lowest value at the middle elevations (about 1600 m). The accumulative temperature for ≥ 0.5 and 10℃ exhibited nearly identical lapserates, approx imately 180.0℃/100 m along the altitudinal gradient. The initial day of accumulative temperature was delayed a week with each 100 m interval elevation increase. However, the results observed in this study were limited in the southeast slope of Mt. Huang gang, and whet her they can be generalized to other areas requires more detailed observation.