[Objective] The spatiotemporal characteristics of land use changes were studied to provide scientific reference for carrying out ecological and environmental monitoring in concentration area of open pit mine. [Methods] Based on Google Earth images in 2003

2010

2015 and 2019

the land use remote sensing classification was carried out in Changshangou open-pin mine concentration area in Tangshan City

Hebei Province. The land use transfer matrix was calculated by using ArcGIS software

and the spatio-temporal characteristics and causes of land use change in the open-pin mine concentration area were analyzed. [Results] ① From 2003 to 2015

the area of greenland in the study area decreased by 169.61 hm2

accounting for 6.30% of the total area

and the area of bare land and industrial sites increased by 184.73 hm2 and 60.46 hm2

accounting for 6.86% and 2.25% of the total area

respectively; some arable land was occupied; spatially

greenland was mainly converted to bare land and industrial sites. ② From 2015 to 2019

the area of greenland in the study area decreased by 61.05 hm2

accounting for 2.27% of the total area

and the area of industrial sites increased by 43.90 hm2

accounting for 1.63% of the total area

with little changes in the area of other land use types; spatially greenland was transformed into bare land and industrial sites

with little change of the total area. [Conclusion] In the early stage of mining

a large amount of green land was occupied in the open pit mine

the vegetation destruction and land resource occupation was serious

and the ecological environment was seriously affected. At the late stage of mining

the ecological restoration and treatment of the mine were strengthened

and the effect of “management while mining” mode was initially achieved.