To reflect the population distribution directly in north-south tr ansect of eastern China(NSTEC),five periods of population density maps coveri n g1953,1964,1982,1990and1997are compiled based on seven eigenvalues of5,10,50,100,200,400and800persons per km 2 .According to the analysis of the maps,we can see that the higher the den sity is,the faster the growth rate.Furthermore,correlation and regression ana lysis shows that density is related with plough and urban land use positively, with grassland and forest negatively,and the regression equation between densit y and land use is thus built.So,the regression equation between plough and for est can be also built to inverse LUCC in past times.The analysis of pattern cha nges of population density,which is regarded as an important driving force of land use and cover change in NSTEC,shows the force of population density to LU CC.The development of population density eigenvalues varies among several regi ons.The study of this paper shows the correlation to certain extent between l and use structure and contemporary population.Through the regression equation i n this paper,contemporary land use structure can be mapped based on population density.However,besides population density,there are many other forces acting on land use change,such as city development,technology,education and so on.