Abstract: The chemical compositions and saccharide of Larix kaempferi in different tree age and different vertical location within a stem were investigated. In a result,the chemical compositions of Larix kaempferi in different tree age had certain difference. With the growing of Larix kaempferi tree,the total carbohydrate decreases,water extraction and 1%NaOH extraction increase,glucose and xylose decrease,galactose increases. Taking chemical compositions into account,12-years and 15-years Larix kaempferi had an advantage over those aged more than 20 years in papermaking.As compared with L.gmelinii,its water extraction,1%NaOH extraction and galactose were less,however,glucose was more.So Larix kaempferi was better than L.gmelinii in papermaking.