Beijing Song mountain nature reserve is a national nature reserve in Beijing city. It has typical landscape of the northern temperate climate. Protected objects are mainly natural Chinese pine (Pinus tabulaeformis) deciduous broad-leave forest ecological systems. This paper reports the preliminary result of part of macro-fungi in Beijing song mountain nature reserve. Used Ainsworth's identification system, Results of investigation show that there are 31 species of wild macro-fungi in Beijing Song mountain nature reserve belonging to 2 subphyla, 16 families. Among them, 23 species are edible and medicinal, 7 timber rotting, 7 ectomycorrhizal fungi, 6 poisonous. The species diversity is very high in this area, induding animals and plant and macro-fungi. The potential value for utilization is very high.