Using GIS and such models as dynamic degree model,spatial differences model,change of land use degree model,analyzed the land use spatio-temporal changes in Yuyang during 1988 and 2001.Moreover,we at large analysed the driving force of land use change.The conclusions were drawn as follows:(1) During 1988 and 2001,land use changed observably.Forest land,garden land,farmland,rural residential land and city and town land,traffic land increased.Meantime,unused land,grassland and waters land decreased.The synthetic dynamic degree of land use in Yuyang per year is 0.45%,which was larger than Yulin City.(2) The spatial differences of land-use change in Yuyang is obvious.(3) The change ratio of land use degree showed that in the last 13 years the land use type was during regulation.(4) In the during of land use in Yuyang,the effects of natural factors are low.Among the driving factors,the social-economic factors,such as the population,gross production value of industry,the quantity of villages and towns corporation,urbanization level,are dominant.