Abstract: Understanding drivers of breeding habitat change of endangered species is the premise of making of wildlife protection plan. Nest site data of redcrowned crane （Grus japonensis） in1996 and 2004， remote sensing images of Landsat TM and DMSP／OLS night time light intensity data at the same periods were collected as the main information source， while the ecological niche model of maximum entropy method （Maxent） was applied to predict breeding habitat of the crane. Then scenario analysis and spatial hot spots exploration were used to study the drivers of breeding habitat change of redcrowned crane. Research results showed that：（1）the area proportion of good and medium quality habitat were dramatically decreased by 287 ％ and 559 ％ respectively， while the spatial distribution of high quality breeding habitat for the crane with suitability above 090 were less aggregated and more fragmented；（2） the human disturbance had cage effect on the habitat of endangered bird， while the climate change made the distribution center shift to places with better environmental condition；（3）the hot spots with significantly increased habitat suitability were located at places with improved hydrological and growing conditions of marsh plant，while the cold spots located at places with deteriorated environmental factors.