[Objective] The impacts of the transformation of productive-living-ecological space on the change of ecological risks in oasis cities were analyzed to realize the coordinated development of productive-living-ecological space

in order to provide scientific basis for solving the disorder of land development

resource and environment problems caused by rapid economic development and social transformation.[Methods] Based on the vector data of productive-living-ecological space in Urumqi City during 2000

2010 and 2018

as well as the methods of GIS spatial analysis and ground statistics analysis

the ecological risk index on grid scale was constructed to quantitatively evaluate the spatial-temporal differentiation characteristics of ecological risk in Urumqi City.[Results] ① During the study period

the area of living and productive space increased significantly

with a growth rate of 169.78%. The area of ecological production space increased gently

and the area of ecological and production ecological space decreased by 4.27% and 21.79%. The comprehensive dynamic degree of productive-living-ecological space was 0.40%

and the center of gravity shifted southward. ② During the past 20 years

the risk levels were mainly high and relative higher in the ecological space area

accounting for 92.15%

while the risk levels in other spaces were relatively low

and the risk levels in the living and productive ecological space areas incrased. ③ From 2010 to 2018

the degree of ecological risk in the region slowed down

and the change of ecological risk levels mainly declined

which was 1.95 times of the increase area. ④ The response elasticity of the ecological risk to the change of productive-living-ecological space in the study area decreased

indicating that the factors affecting ecological risk showed diversified characteristics.[Conclusion] ① During 2000-2018

the area of living production space in this region has significantly expanded with an increase of 606.99 km2

mainly from the surrounding ecological space and production ecological space. ② The ecological security situation in the region tended to be improved

but it still belong to the middle and high-risk areas

which need to strengthen the management of the extremely unstable ecological space.