Abstract: Macroporous adsorptive resin column and polyamide column were used respectively to purify arabinogalactan (AG) from Larix gmeini Rupr.. The contents of impurity in AG and sugar varying with time were analyzed. The purification effects by the two methods were compared, showing that the yield of arabinogalactan purified by the resin was 68.28%, and the sugar content was 95.02%, while those by polyamide column were 75.67% and 98.30%,respectively. The method of polyamide column chromatography is preferred for purifying AG, based on the comparisons of yield, purity and cost.

Key words: Larix gmeini Rupr., arabinogalactan, macroporous adsorptive resin, polyamide, column chromatography