This paper analyses the evolvement of Chinese forest and woodland. Firstly, it points out Chinese woodland has been decreasing continually anyhow, which attributes mostly to the huge pressure of population growth, the extension of plowlands derived from high frequency of all sorts of c activities that humankind engaged and the expansion of various constructions. Secondly, based on the timeseries data, this paper analyses the correlativity among Chinese forests, woodland and correlative variables. It draws a conclusion that among the correlative factors which influence the alteration of forest resources and woodland area, the compositor is all other lands acreage, per capita GDP, gross population, agriculture area and country population according to the correlativity from strong to weak.