AbstractConservation and sustainable utilization of biodiversity is one of the most important work in sustainable forest management . One of the challenges in the practice of sustainable forest management is how to assess biodiversity quickly and effectively. Under the framework of sustainable development , this paper dealt with biodiverdity assessment for sustainable forest management in the Korean pine-broadleaved forest region. An indirect assessment system and method was proposed. It was mainly based on the principles of relationships between species and habitats , natural disturbance regimes , the interactions among species , special habitats , and vulnerable species. On the basis of characteristics of disturbance regimes , general conditions of forest stands , tree layer , shrub layer , herbaceous layer , vines , and epiphytes in the Korean pine2broadleaved forest region , a table for field recording of indirect biodiversity assessment in subcompartments was made using the repetition accumulation method. When making plans for biodiversity conservation for a forest management unit such as forestry bureau or forest farm , we should firstly make conservation priority for different forest types according to the resistance and adaptability of forest to disturbances. We then make field record for subcompartments of different forest types ,and determine the conservation priority and correspondent measures for different subcompartments. The field indirect record for biodiversity can be combined with forest management inventory.