Abstract: We compared the dynamics of litter production and storage in the natural tropical montane rain forest with that of a regenerated forest after clear cutting at Jianfengling, Hainan Island, and studied the effect of typhoon on litter production.The mean annual litterfall (D. W) in the tropical montane rain forest was 9.177t·ha-1, of which the leaves, branches, and flowers and other mixed matter accounted for 49.6%, 37.0% and 13.4%,respectively. The annual litterfall in the regenerated forest was 9.323t·ha-1 with the leaves, branches, and flowers and other mixed matter occupying 56.2% , 33.0%, and 10.8%, respectively, of the total litterfall. The storage of litterfall in both of the two forest types was 5.9t·ha-1.A double falling peak and extremely high percentage of litterfall caused by typhoon are characteristic of the litter production in the tropical forest at the Jianfengling area. In some years, the typhoon-induced litterfall accounted for over 40% of the total litter production, illustrating that the effect of typhoon on tropiacl montane rain forest ecosystems is frequent, large and farreaching.