Abstract: Tilia amurensis is one of main planting-tree species in northeastern China and often forms mixed forest with Pinus koraiensis, Picea koraiensis, and Fraxinus mandshurica. Hence study on the influence of main associated tree species on growth of T. amurensis is important not only for the tree allelopathy, but also for selection of properly associated tree in building mixed forests of T. amurensis. This paper deals with results obtained from a lot of experiments on culture of T. amurensis in pots using the extracts of above mentioned tree leaves and their leaf powder mixed the soil. Experiment shows that leaves of Pinus and Picea negatively influences on growth of T. amurensis. But this phenomenon has not occurred in the experiment of Fraxinus leave-powders.