Abstract: The mortgage loan behavior of forest resources in state-owned forest farms was analyzed from the angle of the defect of the external and internal restraint mechanism. The defects of the external restraint mechanism were mainly analyzed from the relevant legal system at the national level, the provincial forestry administrative departments, the provincial financial departments, the provincial state-owned capital departments, and the lending banks. The defects of internal restraint mechanism were mainly analyzed from the point of view of failure of liability target system and imperfect management structure of enterprise corporate. Due to the lack of internal and external constraints of state-owned forest farms, state-owned forest farms have successfully provided mortgage guarantees to on-site enterprises to bank loans. On the basis of this,some suggestions on improving the limitation mechanism of state-owned forest resources were put forward.

Key words: state-owned forest farms, limitation mechanism defect, forest resources, mortgage loans