Abstract: According to the vegetation composition, we divided the vegetation types of Mount Tai forest farm into ten types, including Pinus tabuliformis forest, Pinus densiflora forest, Pinus thunbergii forest, Pinus armandii forest, Platycladus orientalis forest, Quercus forest, Robinia pseudoacacia forest, mixed forest, economic forest and Meadow. By setting up typical sample plots of different types and combining with the biomass experience model method, we measured and calculated the forestry carbon storage and carbon density of Mount Tai forest ecological system. The results were as follows: The total carbon storage of Mount Tai forest ecological system was 24054×104 t. Forest carbon storage of vegetation types from high to low was Pinus tabuliformis forest（8563×104 t）, mixed forest（5729×104 t）, Robinia pseudoacacia forest（2811×104 t）, Quercus forest（2250×104 t）, Platycladus orientalis forest（1675×104 t）, Pinus densiflora forest（1490×104 t）, economic forest（612×104 t）, Pinus thunbergii forest（393×104 t）, Pinus armandii forest（275×104 t） and Meadow(2.55×104 t). Forest carbon storage rate of spatial levels from high to low was soil layer (7752%), tree layer (2060%), litter layer (149%), herbaceous layer(022%), shrub layer(017%). Soil layer and tree layer accounted for 9812% of total carbon storage. Carbon storage in soil layer was 3.69 times to those in vegetable layer. The total carbon density of Mount Tai forest ecological system was 20217t/hm2, and the biggest one was Robinia pseudoacacia forest (31088t/hm2). In terms of the forest carbon sinks function, we shouldn′t reduce the area of Robinia pseudoacacia forest, but should be strengthen the operation and management in the future.