Five kinds of macroporous resins named as HPD-100,AB-8,D101 ,NAK- Ⅱ and S-8 have been selected to purify Lagerstroemia specious total triterpenes. The comparative research on adsorption isotherm, sorption capacity, desorption ratio and sorption kinetics have also been done. The result showed that HPD-100 resin was an excellent adsorbent. The yield of Lagerstroemia specious total triterpenes purified with HPD -100 resin was increased from 15.6% to 30.3%.