Soil fertilities of three you ng broadleaf mixed plantations were compared with those of a Cunninghamia lanceolata plantation.The soils of the broadleaf mixed plantations were rather strong in acidity.Among four plantations, the contents of soil organic mat ter, total N and available P were the highest in the first evergreen broadleaf mixed plantation, and its other nutrient contents were higher than the C.lanceolata plantation or similar to the latter; Total P, total K, alkalized N and available K were the highest in the sec- ond evergreen broadleaf mixed plantation, and its soil organic matter, total N and available P contents were greater than C.lanceolata plantation; Soil organic matter, total N and alkalized N of the third evergreen broadleaf mixed forest were greater than those of the C.lanceolata plantation, whereas its other nutrient contents were lower than the latter.The amounts of soil bacterium, fungi and actinomyces of the first and second evergreen broadleaf mixed plantations were greater than those of C.lanceolata plantation, and their urease,phosphoric acid enzyme and catalase activities were high, indicating that the two plantations significandy improved soil fertility.