In this study,the Liaohe River basin was taken as an example,to explore the balance and coordination between ecosystem services,providing a scientific basis for promoting the construction of watershed ecological civilization and implementing more targeted measures for watershed ecosystem restoration. First,using InVEST model,tradeoff-synergy index (TSI),ArcGIS and so on,Four typical ecosystem services in the basin,including modules of Water yield(WY),Habitat quality(HQ),Carbon storage(CS) and Sediment retention(SC) were selected to explore the spatial and temporal evolution pattern among ecosystem services as well as to explore the trade-off synergies between ecosystem services. This approach quantitatively measures the synergy and correlation between ecosystem services. Secondly,considering the four dimensions of climate,society, topographic and vegetation factors,SPSS and the geographical detector were used to reveal the driving forces behind the tradeoff-synergies between ecosystem services. Finally,quantitative relationships of six ecosystem services were used as dependent variables,with climate,society,topography,as well as vegetation factors as independent variables. The spatial heterogeneity of various types of drivers was considered using MGWR. The results show that (1)From 2000 to 2020,WY in the east and southeast of the basin was significantly enhanced,The total amount of Water yield has increased significantly,The spatial distribution characteristics of Water yield in 2000 and 2020 are consistent. HQ weakening showed a high-low-high distribution characteristic from east to west,the spatial distribution pattern of CS within the watershed was significant,with CS in the east and west larger than in the middle,SC in the watershed showed an increasing trend.(2) The quantitative relationships of the six ecosystem services passed the spatial autocorrelation test and showed strong cluster positive correlation. In the SC-WY,HQ-SC,and WY-HQ,there was a significant synergy within the watershed,however,CS-SC,CS-WY,and CS-HQ were mainly tradeoffs. (3)Under the effect of a single factor,the topographic factors can greatly explain the quantitative relationships of the six ecosystem services. Under the interaction of each factor,the interaction among the factors was mainly dominated by two-factor enhancement and nonlinear enhancement.(4)In the spatial distribution,the standard residues all show a random distribution pattern in space.There are obvious spatial differences in the quantitative relationship effect of different impact factors for the six ecosystem services,The climate factors showed a distinct and singular positive effect;the direction and extent of the impact of elevation on ecosystem services vary;the rise of population density leads to the trend of quantitative relationship of ecosystem services from synergy to tradeoff.