Abstract: Wood-decaying fungi are an important component of forest ecosystems; they can decompose the dead wood and play a key role in the nutrient cycle of the ecosystem. The broadleaved Korean pine mixed forest in Changbai Mountain harbors complex structure and multiplex plants and provides rich substrates for wood-decaying fungi. To understand the effect of the host plants on wooddecaying fungi, 325 subplots, each with 20 m × 20 m, were selected in the Changbai Mountain Plot (the CBS plot). Every fungal individual in the subplots was recorded and identified, and the statistic analyses of wood-decaying fungi collected from four dominant hosts were done, including Acer, Quercus, Tilia and Pinus. The results showed that the fungi on the four hosts comprised 86.6% of all individuals and 95.3% of all species in the subplots. The discrepancy of the fungal species on different hosts was clearly observed. The Venn diagram showed that only seven species were common on the four hosts. The distinct species on different hosts accounted for >25% of their respective fungal composition. Moreover, the decaying degree and the diameter of dead wood also influenced the fungal community. The highest fungal diversity was observed on the wood with large diameter (>10 cm) and in the decaying degree 2.