The ninth Kasuya Research Forest Management Plan (2015-2024) designated five reserved forests (Woody liana, Abies firma and Rhododendron farrenrae, Juniperus rigida, Diospyros japonica, and Castanopsis and Quercus). We surveyed the 5 years dynamics of stand structure and species composition of 20m × 20m monitoring plot established in each model forest. In woody liana reserved forest, tree and liana density decreased slightly, while the basal area did not change. In Abies firma and Rhododendron farrenrae, and Diospyros japonica reserved forests, tree density decreased slightly, while the basal area increased. In Juniperus rigida reserved forest, both of tree density and basal area increased largely. In Castanopsis and Quercus reserved forest, both of tree density and basal area decreased.