Abstract: The protection,development and rational utilization of the rare and endangered wild plants have become one of the core contents of biodiversity protection.Located in the southeast coast of Shandong Peninsula,Laoshan is among the most abundant biodiversity areas in Shandong province as a obvious north-south bridge.Using the sampling survey procedure,the paper provides a description on the natural distribution of 12 kinds of rare and endangered wild plants,and distribution range,interdependent community,habitat conditions and growth state in Laoshan.It puts forward the protection countermeasures as well.The survey shows that the numbers of rare and endangered wild plants are less in general.Species scatter across larger elevation ranges with uneven distribution.Species community types are relatively complex. Habitat is mostly located in the slope,and this characteristic is obvious.As the main part of human disturbance,tourism has medium intensity in this case.The protection levels vary widely.This investigation provides basic data for better protection of the wild plants.

Key words: Laoshan, biodiversity, rare and endangered wild plants, sampling methods