Ten typical forests were selected as plots in order to investigate the litterfall productions, composition and seasonal dynamics of different types litterfall production in Xiaoxing'an Mountain. The results showed that annual litterfall production was in descending order: Tilia-Pinuskoraiensis(4.08t·hm^-2·a^-1)>Quercusmongolica-Pinus koraiensis(3.83 t·hm^-2·a^-1) > Picea sp.Abies nephlolepis-Pinuskoraiensis(3.55t·hm^-2·a^-1)>Picea sp.-Abies.nephlolepis(3.44t·hm^-2·a^-1)> Betula costata-Pinus koraiensis(3.43t·hm^-2·a^-1)>Populus davidiana forest(3.26 t·hm^-2·a^-1)>Betula platyphylla(3.04 t·hm^-2·a^-1) > Betula costata(2.96 t·hm^-2·a^-1)> miscellaneous wood forest(2.95 t·hm^-2·a^-1)> Betula platyphylla-Larix gmelinii(2.91 t·hm^-2·a^-1).litter production had no significant differences. needles accounted for more than 60% of the total litter,branches accounted for only 5.7%-9.4%. There are two seasonal dynamics of litterfall production in ten different community types,the annul dynamics of the forest litter in Betulacostata,Quercusmongolica-Pinus.koraiensis,Populusdavidiana,Betulacostata-Pinuskoraiensis,Betula platyphylla,miscellaneous wood forest appeared to be single climax curve,in which the highest point occurred in August to October.Picea,sp.-Abiesnephlolepis-Pinus koraiensis and Picea sp.-Abies nephlolepis was double peak and the highest point occurred in April and September.Betula platyphylla-Larix gmelinii also was double peak and the highest point occurred in August and October.The annual litterfall productions was significantly different among in different community types, primary Korean pine forests was higher than natural secondary forests, but litter components and the peak values appeared at different periods of time were mainly associated with community types in Xiaoxing'an Mountain.